52525557 has 32 divisors (see below), whose sum is σ = 93619200. Its totient is φ = 28432944.

The previous prime is 52525553. The next prime is 52525559. The reversal of 52525557 is 75552525.

52525557 is a `hidden beast` number, since 52 + 52 + 5 + 557 = 666.

It is not a de Polignac number, because 52525557 - 2² = 52525553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52525553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3723 + ... + 10904.

It is an arithmetic number, because the mean of its divisors is an integer number (2925600).

Almost surely, 2^52525557 is an apocalyptic number.

52525557 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

52525557 is a deficient number, since it is larger than the sum of its proper divisors (41093643).

52525557 is a wasteful number, since it uses less digits than its factorization.

52525557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14662 (or 14656 counting only the distinct ones).

The product of its digits is 87500, while the sum is 36.

The square root of 52525557 is about 7247.4517590668. The cubic root of 52525557 is about 374.5043692223.

The spelling of 52525557 in words is "fifty-two million, five hundred twenty-five thousand, five hundred fifty-seven".