56612761 has 4 divisors (see below), whose sum is σ = 59592400. Its totient is φ = 53633124.

The previous prime is 56612749. The next prime is 56612767. The reversal of 56612761 is 16721665.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16721665 = 5 ⋅3344333.

It is not a de Polignac number, because 56612761 - 2⁹ = 56612249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56612767) 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, 1489791 + ... + 1489828.

It is an arithmetic number, because the mean of its divisors is an integer number (14898100).

Almost surely, 2^56612761 is an apocalyptic number.

It is an amenable number.

56612761 is a deficient number, since it is larger than the sum of its proper divisors (2979639).

56612761 is a wasteful number, since it uses less digits than its factorization.

56612761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2979638.

The product of its digits is 15120, while the sum is 34.

The square root of 56612761 is about 7524.1452006191. The cubic root of 56612761 is about 383.9766175903.

The spelling of 56612761 in words is "fifty-six million, six hundred twelve thousand, seven hundred sixty-one".