56752761 has 8 divisors (see below), whose sum is σ = 81491200. Its totient is φ = 34924752.

The previous prime is 56752757. The next prime is 56752777. The reversal of 56752761 is 16725765.

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

It is not a de Polignac number, because 56752761 - 2² = 56752757 is a prime.

It is a super-2 number, since 2×56752761² = 6441751762246242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1455199 = 56752761 / (5 + 6 + 7 + 5 + 2 + 7 + 6 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56752711) 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, 727561 + ... + 727638.

It is an arithmetic number, because the mean of its divisors is an integer number (10186400).

Almost surely, 2^56752761 is an apocalyptic number.

It is an amenable number.

56752761 is a deficient number, since it is larger than the sum of its proper divisors (24738439).

56752761 is a wasteful number, since it uses less digits than its factorization.

56752761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455215.

The product of its digits is 88200, while the sum is 39.

The square root of 56752761 is about 7533.4428384372. The cubic root of 56752761 is about 384.2928741721.

The spelling of 56752761 in words is "fifty-six million, seven hundred fifty-two thousand, seven hundred sixty-one".