56247396505 has 8 divisors (see below), whose sum is σ = 67759511112. Its totient is φ = 44822827008.

The previous prime is 56247396503. The next prime is 56247396577. The reversal of 56247396505 is 50569374265.

It can be written as a sum of positive squares in 4 ways, for example, as 4218242704 + 52029153801 = 64948^2 + 228099^2 .

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 56247396505 - 2¹ = 56247396503 is a prime.

It is a super-2 number, since 2×56247396505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56247396503) 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, 21884862 + ... + 21887431.

It is an arithmetic number, because the mean of its divisors is an integer number (8469938889).

Almost surely, 2^56247396505 is an apocalyptic number.

It is an amenable number.

56247396505 is a deficient number, since it is larger than the sum of its proper divisors (11512114607).

56247396505 is a wasteful number, since it uses less digits than its factorization.

56247396505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43772555.

The product of its (nonzero) digits is 6804000, while the sum is 52.

The spelling of 56247396505 in words is "fifty-six billion, two hundred forty-seven million, three hundred ninety-six thousand, five hundred five".