52931557 has 8 divisors (see below), whose sum is σ = 64051776. Its totient is φ = 42700992.

The previous prime is 52931443. The next prime is 52931561. The reversal of 52931557 is 75513925.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52931557 - 2¹⁹ = 52407269 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 (52931357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222283 + ... + 222520.

It is an arithmetic number, because the mean of its divisors is an integer number (8006472).

Almost surely, 2^52931557 is an apocalyptic number.

It is an amenable number.

52931557 is a deficient number, since it is larger than the sum of its proper divisors (11120219).

52931557 is a wasteful number, since it uses less digits than its factorization.

52931557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444827.

The product of its digits is 47250, while the sum is 37.

The square root of 52931557 is about 7275.4076861713. The cubic root of 52931557 is about 375.4668130242.

The spelling of 52931557 in words is "fifty-two million, nine hundred thirty-one thousand, five hundred fifty-seven".