57122065 has 64 divisors (see below), whose sum is σ = 93768192. Its totient is φ = 32256000.

The previous prime is 57122063. The next prime is 57122071. The reversal of 57122065 is 56022175.

It is not a de Polignac number, because 57122065 - 2¹ = 57122063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57122063) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 505449 + ... + 505561.

It is an arithmetic number, because the mean of its divisors is an integer number (1465128).

Almost surely, 2^57122065 is an apocalyptic number.

57122065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

57122065 is a deficient number, since it is larger than the sum of its proper divisors (36646127).

57122065 is a wasteful number, since it uses less digits than its factorization.

57122065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 57122065 is about 7557.9140640788. The cubic root of 57122065 is about 385.1246349726.

It can be divided in two parts, 5712 and 2065, that added together give a palindrome (7777).

The spelling of 57122065 in words is "fifty-seven million, one hundred twenty-two thousand, sixty-five".