52404531 has 4 divisors (see below), whose sum is σ = 69872712. Its totient is φ = 34936352.

The previous prime is 52404497. The next prime is 52404563. The reversal of 52404531 is 13540425.

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 52404531 - 2⁷ = 52404403 is a prime.

It is a super-2 number, since 2×52404531² = 5492469738659922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52404581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8734086 + ... + 8734091.

It is an arithmetic number, because the mean of its divisors is an integer number (17468178).

Almost surely, 2^52404531 is an apocalyptic number.

52404531 is a deficient number, since it is larger than the sum of its proper divisors (17468181).

52404531 is a wasteful number, since it uses less digits than its factorization.

52404531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17468180.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 52404531 is about 7239.0973884870. The cubic root of 52404531 is about 374.2165117520.

Adding to 52404531 its reverse (13540425), we get a palindrome (65944956).

The spelling of 52404531 in words is "fifty-two million, four hundred four thousand, five hundred thirty-one".