57662081 has 4 divisors (see below), whose sum is σ = 60169152. Its totient is φ = 55155012.

The previous prime is 57662027. The next prime is 57662117. The reversal of 57662081 is 18026675.

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 de Polignac number, because none of the positive numbers 2^k-57662081 is a prime.

It is a super-2 number, since 2×57662081² = 6649831170501122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57662981) 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, 1253501 + ... + 1253546.

It is an arithmetic number, because the mean of its divisors is an integer number (15042288).

Almost surely, 2^57662081 is an apocalyptic number.

It is an amenable number.

57662081 is a deficient number, since it is larger than the sum of its proper divisors (2507071).

57662081 is a wasteful number, since it uses less digits than its factorization.

57662081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507070.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 57662081 is about 7593.5552279548. Note that the first 3 decimals coincide. The cubic root of 57662081 is about 386.3344506606.

The spelling of 57662081 in words is "fifty-seven million, six hundred sixty-two thousand, eighty-one".