55249697712 has 60 divisors (see below), whose sum is σ = 156883283480. Its totient is φ = 16742330880.

The previous prime is 55249697693. The next prime is 55249697717. The reversal of 55249697712 is 21779694255.

It is not an unprimeable number, because it can be changed into a prime (55249697717) 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, 4750537 + ... + 4762152.

Almost surely, 2^55249697712 is an apocalyptic number.

It is an amenable number.

55249697712 is an abundant number, since it is smaller than the sum of its proper divisors (101633585768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55249697712 is a wasteful number, since it uses less digits than its factorization.

55249697712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512722 (or 9512705 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 57.

The spelling of 55249697712 in words is "fifty-five billion, two hundred forty-nine million, six hundred ninety-seven thousand, seven hundred twelve".