52257708 has 18 divisors (see below), whose sum is σ = 132095964. Its totient is φ = 17419224.

The previous prime is 52257697. The next prime is 52257719. The reversal of 52257708 is 80775225.

It is an interprime number because it is at equal distance from previous prime (52257697) and next prime (52257719).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1451603 = 52257708 / (5 + 2 + 2 + 5 + 7 + 7 + 0 + 8).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 725766 + ... + 725837.

Almost surely, 2^52257708 is an apocalyptic number.

It is an amenable number.

52257708 is an abundant number, since it is smaller than the sum of its proper divisors (79838256).

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

52257708 is a wasteful number, since it uses less digits than its factorization.

52257708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451613 (or 1451608 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 52257708 is about 7228.9493012470. The cubic root of 52257708 is about 373.8667011401.

The spelling of 52257708 in words is "fifty-two million, two hundred fifty-seven thousand, seven hundred eight".