56861617485 has 8 divisors (see below), whose sum is σ = 90978588000. Its totient is φ = 30326195984.

The previous prime is 56861617481. The next prime is 56861617567. The reversal of 56861617485 is 58471616865.

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 56861617485 - 2² = 56861617481 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56861617481) 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, 1895387235 + ... + 1895387264.

It is an arithmetic number, because the mean of its divisors is an integer number (11372323500).

Almost surely, 2^56861617485 is an apocalyptic number.

It is an amenable number.

56861617485 is a deficient number, since it is larger than the sum of its proper divisors (34116970515).

56861617485 is a wasteful number, since it uses less digits than its factorization.

56861617485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790774507.

The product of its digits is 9676800, while the sum is 57.

The spelling of 56861617485 in words is "fifty-six billion, eight hundred sixty-one million, six hundred seventeen thousand, four hundred eighty-five".