56667455 has 16 divisors (see below), whose sum is σ = 73524864. Its totient is φ = 41679360.

The previous prime is 56667451. The next prime is 56667463. The reversal of 56667455 is 55476665.

It is not a de Polignac number, because 56667455 - 2² = 56667451 is a prime.

It is a super-2 number, since 2×56667455² = 6422400912354050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56667451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16007 + ... + 19223.

It is an arithmetic number, because the mean of its divisors is an integer number (4595304).

Almost surely, 2^56667455 is an apocalyptic number.

56667455 is a deficient number, since it is larger than the sum of its proper divisors (16857409).

56667455 is a wasteful number, since it uses less digits than its factorization.

56667455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506.

The product of its digits is 756000, while the sum is 44.

The square root of 56667455 is about 7527.7788888888. The cubic root of 56667455 is about 384.1002319912.

The spelling of 56667455 in words is "fifty-six million, six hundred sixty-seven thousand, four hundred fifty-five".