57155395 has 16 divisors (see below), whose sum is σ = 75569760. Its totient is φ = 41152000.

The previous prime is 57155393. The next prime is 57155419. The reversal of 57155395 is 59355175.

57155395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57155395 - 2¹ = 57155393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57155393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411 + ... + 10699.

It is an arithmetic number, because the mean of its divisors is an integer number (4723110).

Almost surely, 2^57155395 is an apocalyptic number.

57155395 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57155395 is a deficient number, since it is larger than the sum of its proper divisors (18414365).

57155395 is a wasteful number, since it uses less digits than its factorization.

57155395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10406.

The product of its digits is 118125, while the sum is 40.

The square root of 57155395 is about 7560.1187159991. The cubic root of 57155395 is about 385.1995255209.

The spelling of 57155395 in words is "fifty-seven million, one hundred fifty-five thousand, three hundred ninety-five".