57155202 has 24 divisors (see below), whose sum is σ = 133362684. Its totient is φ = 17586144.

The previous prime is 57155191. The next prime is 57155239. The reversal of 57155202 is 20255175.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46908801 + 10246401 = 6849^2 + 3201^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121893 + ... + 122360.

Almost surely, 2^57155202 is an apocalyptic number.

57155202 is an abundant number, since it is smaller than the sum of its proper divisors (76207482).

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

57155202 is a wasteful number, since it uses less digits than its factorization.

57155202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244274 (or 244271 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 27.

The square root of 57155202 is about 7560.1059516385. The cubic root of 57155202 is about 385.1990919451.

Subtracting from 57155202 its sum of digits (27), we obtain a palindrome (57155175).

The spelling of 57155202 in words is "fifty-seven million, one hundred fifty-five thousand, two hundred two".