57030272 has 32 divisors (see below), whose sum is σ = 122358180. Its totient is φ = 26320896.

The previous prime is 57030263. The next prime is 57030289. The reversal of 57030272 is 27203075.

It can be written as a sum of positive squares in 2 ways, for example, as 56911936 + 118336 = 7544^2 + 344^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (26).

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 3 ways as a sum of consecutive naturals, for example, 15473 + ... + 18800.

Almost surely, 2^57030272 is an apocalyptic number.

57030272 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

57030272 is an abundant number, since it is smaller than the sum of its proper divisors (65327908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57030272 is a wasteful number, since it uses less digits than its factorization.

57030272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34300 (or 34288 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 57030272 is about 7551.8389813343. The cubic root of 57030272 is about 384.9182307932.

The spelling of 57030272 in words is "fifty-seven million, thirty thousand, two hundred seventy-two".