56261651601 has 8 divisors (see below), whose sum is σ = 75219938944. Its totient is φ = 37405566000.

The previous prime is 56261651587. The next prime is 56261651603. The reversal of 56261651601 is 10615616265.

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

It is not a de Polignac number, because 56261651601 - 2¹¹ = 56261649553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56261651601.

It is not an unprimeable number, because it can be changed into a prime (56261651603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25549150 + ... + 25551351.

It is an arithmetic number, because the mean of its divisors is an integer number (9402492368).

Almost surely, 2^56261651601 is an apocalyptic number.

It is an amenable number.

56261651601 is a deficient number, since it is larger than the sum of its proper divisors (18958287343).

56261651601 is a wasteful number, since it uses less digits than its factorization.

56261651601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51100871.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 56261651601 in words is "fifty-six billion, two hundred sixty-one million, six hundred fifty-one thousand, six hundred one".