55097931456 has 140 divisors (see below), whose sum is σ = 163938844080. Its totient is φ = 18297239040.

The previous prime is 55097931443. The next prime is 55097931461. The reversal of 55097931456 is 65413979055.

55097931456 is a `hidden beast` number, since 5 + 509 + 7 + 93 + 1 + 45 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1374741 + ... + 1414251.

Almost surely, 2^55097931456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55097931456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81969422040).

55097931456 is an abundant number, since it is smaller than the sum of its proper divisors (108840912624).

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

55097931456 is a wasteful number, since it uses less digits than its factorization.

55097931456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39804 (or 39785 counting only the distinct ones).

The product of its (nonzero) digits is 5103000, while the sum is 54.

The spelling of 55097931456 in words is "fifty-five billion, ninety-seven million, nine hundred thirty-one thousand, four hundred fifty-six".