57025155 has 16 divisors (see below), whose sum is σ = 99535104. Its totient is φ = 27648480.

The previous prime is 57025139. The next prime is 57025169. The reversal of 57025155 is 55152075.

It is not a de Polignac number, because 57025155 - 2⁴ = 57025139 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 172639 + ... + 172968.

It is an arithmetic number, because the mean of its divisors is an integer number (6220944).

Almost surely, 2^57025155 is an apocalyptic number.

57025155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57025155 is a deficient number, since it is larger than the sum of its proper divisors (42509949).

57025155 is a wasteful number, since it uses less digits than its factorization.

57025155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345626.

The product of its (nonzero) digits is 8750, while the sum is 30.

The square root of 57025155 is about 7551.5001820830. The cubic root of 57025155 is about 384.9067182787.

Subtracting from 57025155 its reverse (55152075), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 57025155 in words is "fifty-seven million, twenty-five thousand, one hundred fifty-five".