56767651 has 4 divisors (see below), whose sum is σ = 57036904. Its totient is φ = 56498400.

The previous prime is 56767643. The next prime is 56767661. The reversal of 56767651 is 15676765.

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

It is a cyclic number.

It is not a de Polignac number, because 56767651 - 2³ = 56767643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56767598 and 56767607.

It is not an unprimeable number, because it can be changed into a prime (56767621) 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, 134310 + ... + 134731.

It is an arithmetic number, because the mean of its divisors is an integer number (14259226).

Almost surely, 2^56767651 is an apocalyptic number.

56767651 is the 3370-th centered decagonal number.

56767651 is a deficient number, since it is larger than the sum of its proper divisors (269253).

56767651 is a wasteful number, since it uses less digits than its factorization.

56767651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269252.

The product of its digits is 264600, while the sum is 43.

The square root of 56767651 is about 7534.4310335950. The cubic root of 56767651 is about 384.3264797062.

The spelling of 56767651 in words is "fifty-six million, seven hundred sixty-seven thousand, six hundred fifty-one".