57965681 has 4 divisors (see below), whose sum is σ = 60485952. Its totient is φ = 55445412.

The previous prime is 57965657. The next prime is 57965683. The reversal of 57965681 is 18656975.

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 57965681 - 2¹⁸ = 57703537 is a prime.

It is a super-2 number, since 2×57965681² = 6720040347587522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57965683) 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, 1260101 + ... + 1260146.

It is an arithmetic number, because the mean of its divisors is an integer number (15121488).

Almost surely, 2^57965681 is an apocalyptic number.

It is an amenable number.

57965681 is a deficient number, since it is larger than the sum of its proper divisors (2520271).

57965681 is a wasteful number, since it uses less digits than its factorization.

57965681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520270.

The product of its digits is 453600, while the sum is 47.

The square root of 57965681 is about 7613.5196197291. The cubic root of 57965681 is about 387.0113015193.

The spelling of 57965681 in words is "fifty-seven million, nine hundred sixty-five thousand, six hundred eighty-one".