56561373286 has 24 divisors (see below), whose sum is σ = 93814635600. Its totient is φ = 25555746480.

The previous prime is 56561373263. The next prime is 56561373287. The reversal of 56561373286 is 68237316565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56561373287) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 659361 + ... + 740188.

It is an arithmetic number, because the mean of its divisors is an integer number (3908943150).

Almost surely, 2^56561373286 is an apocalyptic number.

56561373286 is a deficient number, since it is larger than the sum of its proper divisors (37253262314).

56561373286 is a wasteful number, since it uses less digits than its factorization.

56561373286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399740 (or 1399729 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 52.

The spelling of 56561373286 in words is "fifty-six billion, five hundred sixty-one million, three hundred seventy-three thousand, two hundred eighty-six".