57020253 has 24 divisors (see below), whose sum is σ = 80328960. Its totient is φ = 35935680.

The previous prime is 57020251. The next prime is 57020267. The reversal of 57020253 is 35202075.

It is not a de Polignac number, because 57020253 - 2¹ = 57020251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57020251) 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, 640633 + ... + 640721.

It is an arithmetic number, because the mean of its divisors is an integer number (3347040).

Almost surely, 2^57020253 is an apocalyptic number.

It is an amenable number.

57020253 is a deficient number, since it is larger than the sum of its proper divisors (23308707).

57020253 is an equidigital number, since it uses as much as digits as its factorization.

57020253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 24.

The square root of 57020253 is about 7551.1756038381. The cubic root of 57020253 is about 384.8956888374.

The spelling of 57020253 in words is "fifty-seven million, twenty thousand, two hundred fifty-three".