57064261 has 4 divisors (see below), whose sum is σ = 57081024. Its totient is φ = 57047500.

The previous prime is 57064253. The next prime is 57064279. The reversal of 57064261 is 16246075.

It is a happy number.

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 57064261 - 2³ = 57064253 is a prime.

It is a super-2 number, since 2×57064261² = 6512659766952242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57064061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255 + ... + 10756.

It is an arithmetic number, because the mean of its divisors is an integer number (14270256).

Almost surely, 2^57064261 is an apocalyptic number.

It is an amenable number.

57064261 is a deficient number, since it is larger than the sum of its proper divisors (16763).

57064261 is a wasteful number, since it uses less digits than its factorization.

57064261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16762.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 57064261 is about 7554.0890251572. The cubic root of 57064261 is about 384.9946836844.

The spelling of 57064261 in words is "fifty-seven million, sixty-four thousand, two hundred sixty-one".