56375617447 has 8 divisors (see below), whose sum is σ = 59834300400. Its totient is φ = 52932764544.

The previous prime is 56375617439. The next prime is 56375617483. The reversal of 56375617447 is 74471657365.

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

It is not a de Polignac number, because 56375617447 - 2³ = 56375617439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56375917447) 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, 3950172 + ... + 3964417.

It is an arithmetic number, because the mean of its divisors is an integer number (7479287550).

Almost surely, 2^56375617447 is an apocalyptic number.

56375617447 is a deficient number, since it is larger than the sum of its proper divisors (3458682953).

56375617447 is a wasteful number, since it uses less digits than its factorization.

56375617447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915025.

The product of its digits is 14817600, while the sum is 55.

The spelling of 56375617447 in words is "fifty-six billion, three hundred seventy-five million, six hundred seventeen thousand, four hundred forty-seven".