57206253 has 16 divisors (see below), whose sum is σ = 84793856. Its totient is φ = 34067520.

The previous prime is 57206251. The next prime is 57206287. The reversal of 57206253 is 35260275.

It is not a de Polignac number, because 57206253 - 2¹ = 57206251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57206253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57206251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22450 + ... + 24867.

It is an arithmetic number, because the mean of its divisors is an integer number (5299616).

Almost surely, 2^57206253 is an apocalyptic number.

It is an amenable number.

57206253 is a deficient number, since it is larger than the sum of its proper divisors (27587603).

57206253 is a wasteful number, since it uses less digits than its factorization.

57206253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47364.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 57206253 is about 7563.4815396086. The cubic root of 57206253 is about 385.3137443663.

The spelling of 57206253 in words is "fifty-seven million, two hundred six thousand, two hundred fifty-three".