47521248 has 48 divisors (see below), whose sum is σ = 126470736. Its totient is φ = 15621120.

The previous prime is 47521237. The next prime is 47521259. The reversal of 47521248 is 84212574.

47521248 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47521237) and next prime (47521259).

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×47521248² = 4516538022955008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3618 + ... + 10398.

It is an arithmetic number, because the mean of its divisors is an integer number (2634807).

Almost surely, 2^47521248 is an apocalyptic number.

47521248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47521248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63235368).

47521248 is an abundant number, since it is smaller than the sum of its proper divisors (78949488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47521248 is a wasteful number, since it uses less digits than its factorization.

47521248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6867 (or 6859 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 47521248 is about 6893.5656956324. The cubic root of 47521248 is about 362.2118150302.

It can be divided in two parts, 475212 and 48, that multiplied together give a square (22810176 = 4776²).

The spelling of 47521248 in words is "forty-seven million, five hundred twenty-one thousand, two hundred forty-eight".