56705224628 has 12 divisors (see below), whose sum is σ = 106867538820. Its totient is φ = 26171642112.

The previous prime is 56705224621. The next prime is 56705224637. The reversal of 56705224628 is 82642250765.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12555650704 + 44149573924 = 112052^2 + 210118^2 .

It is a super-2 number, since 2×56705224628² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56705224621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545242493 + ... + 545242596.

It is an arithmetic number, because the mean of its divisors is an integer number (8905628235).

Almost surely, 2^56705224628 is an apocalyptic number.

It is an amenable number.

56705224628 is a deficient number, since it is larger than the sum of its proper divisors (50162314192).

56705224628 is a wasteful number, since it uses less digits than its factorization.

56705224628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090485106 (or 1090485104 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 47.

The spelling of 56705224628 in words is "fifty-six billion, seven hundred five million, two hundred twenty-four thousand, six hundred twenty-eight".