52657992 has 32 divisors (see below), whose sum is σ = 146272800. Its totient is φ = 17552592.

The previous prime is 52657967. The next prime is 52657999. The reversal of 52657992 is 29975625.

It is not an unprimeable number, because it can be changed into a prime (52657999) 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, 121678 + ... + 122109.

It is an arithmetic number, because the mean of its divisors is an integer number (4571025).

Almost surely, 2^52657992 is an apocalyptic number.

It is an amenable number.

52657992 is an abundant number, since it is smaller than the sum of its proper divisors (93614808).

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

52657992 is a wasteful number, since it uses less digits than its factorization.

52657992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243802 (or 243792 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 52657992 is about 7256.5826667930. The cubic root of 52657992 is about 374.8188565129.

The spelling of 52657992 in words is "fifty-two million, six hundred fifty-seven thousand, nine hundred ninety-two".