57122505 has 24 divisors (see below), whose sum is σ = 108014400. Its totient is φ = 27695520.

The previous prime is 57122503. The next prime is 57122521. The reversal of 57122505 is 50522175.

It is a happy number.

It is not a de Polignac number, because 57122505 - 2¹ = 57122503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57122503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57205 + ... + 58194.

It is an arithmetic number, because the mean of its divisors is an integer number (4500600).

Almost surely, 2^57122505 is an apocalyptic number.

57122505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57122505 is a deficient number, since it is larger than the sum of its proper divisors (50891895).

57122505 is a wasteful number, since it uses less digits than its factorization.

57122505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115421 (or 115418 counting only the distinct ones).

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

The square root of 57122505 is about 7557.9431725834. The cubic root of 57122505 is about 385.1256238164.

The spelling of 57122505 in words is "fifty-seven million, one hundred twenty-two thousand, five hundred five".