56267765 has 4 divisors (see below), whose sum is σ = 67521324. Its totient is φ = 45014208.

The previous prime is 56267753. The next prime is 56267777. The reversal of 56267765 is 56776265.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (56267753) and next prime (56267777).

It can be written as a sum of positive squares in 2 ways, for example, as 30724849 + 25542916 = 5543^2 + 5054^2 .

It is a cyclic number.

It is not a de Polignac number, because 56267765 - 2⁴ = 56267749 is a prime.

It is a super-2 number, since 2×56267765² = 6332122756190450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5626772 + ... + 5626781.

It is an arithmetic number, because the mean of its divisors is an integer number (16880331).

Almost surely, 2^56267765 is an apocalyptic number.

It is an amenable number.

56267765 is a deficient number, since it is larger than the sum of its proper divisors (11253559).

56267765 is a wasteful number, since it uses less digits than its factorization.

56267765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11253558.

The product of its digits is 529200, while the sum is 44.

The square root of 56267765 is about 7501.1842398384. The cubic root of 56267765 is about 383.1950482091.

The spelling of 56267765 in words is "fifty-six million, two hundred sixty-seven thousand, seven hundred sixty-five".