56671761 has 8 divisors (see below), whose sum is σ = 80007264. Its totient is φ = 35558720.

The previous prime is 56671739. The next prime is 56671777. The reversal of 56671761 is 16717665.

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

It is a cyclic number.

It is not a de Polignac number, because 56671761 - 2⁶ = 56671697 is a prime.

It is a super-2 number, since 2×56671761² = 6423376989682242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56671261) 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, 555555 + ... + 555656.

It is an arithmetic number, because the mean of its divisors is an integer number (10000908).

Almost surely, 2^56671761 is an apocalyptic number.

56671761 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

56671761 is a deficient number, since it is larger than the sum of its proper divisors (23335503).

56671761 is a wasteful number, since it uses less digits than its factorization.

56671761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111231.

The product of its digits is 52920, while the sum is 39.

The square root of 56671761 is about 7528.0648907936. The cubic root of 56671761 is about 384.1099606424.

It can be divided in two parts, 566 and 71761, that added together give a palindrome (72327).

The spelling of 56671761 in words is "fifty-six million, six hundred seventy-one thousand, seven hundred sixty-one".