55937972898 has 80 divisors (see below), whose sum is σ = 132779243520. Its totient is φ = 17540751744.

The previous prime is 55937972891. The next prime is 55937972927. The reversal of 55937972898 is 89827973955.

55937972898 is a `hidden beast` number, since 5 + 593 + 7 + 9 + 7 + 28 + 9 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (55937972891) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8321983 + ... + 8328701.

It is an arithmetic number, because the mean of its divisors is an integer number (1659740544).

Almost surely, 2^55937972898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55937972898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66389621760).

55937972898 is an abundant number, since it is smaller than the sum of its proper divisors (76841270622).

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

55937972898 is a wasteful number, since it uses less digits than its factorization.

55937972898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773 (or 9764 counting only the distinct ones).

The product of its digits is 342921600, while the sum is 72.

The spelling of 55937972898 in words is "fifty-five billion, nine hundred thirty-seven million, nine hundred seventy-two thousand, eight hundred ninety-eight".