47448511 has 4 divisors (see below), whose sum is σ = 51762024. Its totient is φ = 43135000.

The previous prime is 47448509. The next prime is 47448523. The reversal of 47448511 is 11584474.

It is a happy number.

47448511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47448511 - 2¹ = 47448509 is a prime.

It is a super-2 number, since 2×47448511² = 4502722392234242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47448311) 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 3 ways as a sum of consecutive naturals, for example, 2156740 + ... + 2156761.

It is an arithmetic number, because the mean of its divisors is an integer number (12940506).

Almost surely, 2^47448511 is an apocalyptic number.

47448511 is a deficient number, since it is larger than the sum of its proper divisors (4313513).

47448511 is a wasteful number, since it uses less digits than its factorization.

47448511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4313512.

The product of its digits is 17920, while the sum is 34.

The square root of 47448511 is about 6888.2879585569. The cubic root of 47448511 is about 362.0269177098.

The spelling of 47448511 in words is "forty-seven million, four hundred forty-eight thousand, five hundred eleven".