57572281 has 8 divisors (see below), whose sum is σ = 62203400. Its totient is φ = 52970112.

The previous prime is 57572233. The next prime is 57572287. The reversal of 57572281 is 18227575.

It can be written as a sum of positive squares in 4 ways, for example, as 705600 + 56866681 = 840^2 + 7541^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57572281 - 2⁷ = 57572153 is a prime.

It is a super-2 number, since 2×57572281² = 6629135079085922, which contains 22 as substring.

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 57572281.

It is not an unprimeable number, because it can be changed into a prime (57572287) 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, 3006 + ... + 11143.

It is an arithmetic number, because the mean of its divisors is an integer number (7775425).

Almost surely, 2^57572281 is an apocalyptic number.

It is an amenable number.

57572281 is a deficient number, since it is larger than the sum of its proper divisors (4631119).

57572281 is a wasteful number, since it uses less digits than its factorization.

57572281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14475.

The product of its digits is 39200, while the sum is 37.

The square root of 57572281 is about 7587.6400151826. The cubic root of 57572281 is about 386.1337939016.

The spelling of 57572281 in words is "fifty-seven million, five hundred seventy-two thousand, two hundred eighty-one".