52904557 has 4 divisors (see below), whose sum is σ = 52937500. Its totient is φ = 52871616.

The previous prime is 52904539. The next prime is 52904587. The reversal of 52904557 is 75540925.

52904557 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 can be written as a sum of positive squares in 2 ways, for example, as 27311076 + 25593481 = 5226^2 + 5059^2 .

It is a cyclic number.

It is not a de Polignac number, because 52904557 - 2⁷ = 52904429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52904587) 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, 13932 + ... + 17317.

It is an arithmetic number, because the mean of its divisors is an integer number (13234375).

Almost surely, 2^52904557 is an apocalyptic number.

It is an amenable number.

52904557 is a deficient number, since it is larger than the sum of its proper divisors (32943).

52904557 is a wasteful number, since it uses less digits than its factorization.

52904557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32942.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 52904557 is about 7273.5518833648. The cubic root of 52904557 is about 375.4029612080.

The spelling of 52904557 in words is "fifty-two million, nine hundred four thousand, five hundred fifty-seven".