56761321 has 8 divisors (see below), whose sum is σ = 57263744. Its totient is φ = 56261520.

The previous prime is 56761319. The next prime is 56761337. The reversal of 56761321 is 12316765.

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 56761321 - 2¹ = 56761319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56761301) 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, 77071 + ... + 77803.

It is an arithmetic number, because the mean of its divisors is an integer number (7157968).

Almost surely, 2^56761321 is an apocalyptic number.

It is an amenable number.

56761321 is a deficient number, since it is larger than the sum of its proper divisors (502423).

56761321 is a wasteful number, since it uses less digits than its factorization.

56761321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its digits is 7560, while the sum is 31.

The square root of 56761321 is about 7534.0109503504. The cubic root of 56761321 is about 384.3121941228.

The spelling of 56761321 in words is "fifty-six million, seven hundred sixty-one thousand, three hundred twenty-one".