56121262417 has 8 divisors (see below), whose sum is σ = 61513355232. Its totient is φ = 50777529600.

The previous prime is 56121262361. The next prime is 56121262451. The reversal of 56121262417 is 71426212165.

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 56121262417 - 2¹¹ = 56121260369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56121262817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12087568 + ... + 12092209.

It is an arithmetic number, because the mean of its divisors is an integer number (7689169404).

Almost surely, 2^56121262417 is an apocalyptic number.

It is an amenable number.

56121262417 is a deficient number, since it is larger than the sum of its proper divisors (5392092815).

56121262417 is a wasteful number, since it uses less digits than its factorization.

56121262417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24179999.

The product of its digits is 40320, while the sum is 37.

The spelling of 56121262417 in words is "fifty-six billion, one hundred twenty-one million, two hundred sixty-two thousand, four hundred seventeen".