57272330 has 16 divisors (see below), whose sum is σ = 105036264. Its totient is φ = 22476480.

The previous prime is 57272329. The next prime is 57272339. The reversal of 57272330 is 3327275.

It can be written as a sum of positive squares in 4 ways, for example, as 53860921 + 3411409 = 7339^2 + 1847^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57272293 and 57272302.

It is not an unprimeable number, because it can be changed into a prime (57272339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53501 + ... + 54560.

Almost surely, 2^57272330 is an apocalyptic number.

57272330 is a deficient number, since it is larger than the sum of its proper divisors (47763934).

57272330 is a wasteful number, since it uses less digits than its factorization.

57272330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108121.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 57272330 is about 7567.8484392858. The cubic root of 57272330 is about 385.4620415566.

The spelling of 57272330 in words is "fifty-seven million, two hundred seventy-two thousand, three hundred thirty".