47557040 has 40 divisors (see below), whose sum is σ = 110857488. Its totient is φ = 18973440.

The previous prime is 47557039. The next prime is 47557049. The reversal of 47557040 is 4075574.

47557040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×47557040³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47556988 and 47557006.

It is not an unprimeable number, because it can be changed into a prime (47557049) by changing a digit.

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, 58235 + ... + 59045.

Almost surely, 2^47557040 is an apocalyptic number.

47557040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47557040 is an abundant number, since it is smaller than the sum of its proper divisors (63300448).

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

47557040 is a wasteful number, since it uses less digits than its factorization.

47557040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557 (or 1551 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 47557040 is about 6896.1612510149. The cubic root of 47557040 is about 362.3027289714.

The spelling of 47557040 in words is "forty-seven million, five hundred fifty-seven thousand, forty".