56356665 has 8 divisors (see below), whose sum is σ = 90170688. Its totient is φ = 30056880.

The previous prime is 56356639. The next prime is 56356691. The reversal of 56356665 is 56665365.

It is an interprime number because it is at equal distance from previous prime (56356639) and next prime (56356691).

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

It is not a de Polignac number, because 56356665 - 2⁵ = 56356633 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1878541 + ... + 1878570.

It is an arithmetic number, because the mean of its divisors is an integer number (11271336).

Almost surely, 2^56356665 is an apocalyptic number.

It is an amenable number.

56356665 is a deficient number, since it is larger than the sum of its proper divisors (33814023).

56356665 is a wasteful number, since it uses less digits than its factorization.

56356665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757119.

The product of its digits is 486000, while the sum is 42.

The square root of 56356665 is about 7507.1076321044. The cubic root of 56356665 is about 383.3967511124.

The spelling of 56356665 in words is "fifty-six million, three hundred fifty-six thousand, six hundred sixty-five".