52750557 has 12 divisors (see below), whose sum is σ = 76321440. Its totient is φ = 35108808.

The previous prime is 52750553. The next prime is 52750589. The reversal of 52750557 is 75505725.

52750557 is a `hidden beast` number, since 52 + 7 + 50 + 557 = 666.

It is not a de Polignac number, because 52750557 - 2² = 52750553 is a prime.

It is a super-4 number, since 4×52750557⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52750553) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1294 + ... + 10352.

It is an arithmetic number, because the mean of its divisors is an integer number (6360120).

Almost surely, 2^52750557 is an apocalyptic number.

It is an amenable number.

52750557 is a deficient number, since it is larger than the sum of its proper divisors (23570883).

52750557 is a wasteful number, since it uses less digits than its factorization.

52750557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9712 (or 9709 counting only the distinct ones).

The product of its (nonzero) digits is 61250, while the sum is 36.

The square root of 52750557 is about 7262.9578685271. The cubic root of 52750557 is about 375.0383534106.

The spelling of 52750557 in words is "fifty-two million, seven hundred fifty thousand, five hundred fifty-seven".