52547904 has 42 divisors (see below), whose sum is σ = 150620730. Its totient is φ = 17515776.

The previous prime is 52547903. The next prime is 52547921. The reversal of 52547904 is 40974525.

52547904 is a `hidden beast` number, since 525 + 47 + 90 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 52533504 + 14400 = 7248^2 + 120^2 .

It is a super-2 number, since 2×52547904² = 5522564429586432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52547903) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45039 + ... + 46190.

Almost surely, 2^52547904 is an apocalyptic number.

It is an amenable number.

52547904 is an abundant number, since it is smaller than the sum of its proper divisors (98072826).

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

52547904 is a wasteful number, since it uses less digits than its factorization.

52547904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91247 (or 91234 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 52547904 is about 7248.9933094189. The cubic root of 52547904 is about 374.5574726576.

The spelling of 52547904 in words is "fifty-two million, five hundred forty-seven thousand, nine hundred four".