57072253 has 4 divisors (see below), whose sum is σ = 65225440. Its totient is φ = 48919068.

The previous prime is 57072227. The next prime is 57072259. The reversal of 57072253 is 35227075.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 57072253 - 2⁹ = 57071741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57072259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4076583 + ... + 4076596.

It is an arithmetic number, because the mean of its divisors is an integer number (16306360).

Almost surely, 2^57072253 is an apocalyptic number.

It is an amenable number.

57072253 is a deficient number, since it is larger than the sum of its proper divisors (8153187).

57072253 is an equidigital number, since it uses as much as digits as its factorization.

57072253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8153186.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 57072253 is about 7554.6179916658. The cubic root of 57072253 is about 385.0126560184.

The spelling of 57072253 in words is "fifty-seven million, seventy-two thousand, two hundred fifty-three".