55103626458 has 64 divisors (see below), whose sum is σ = 127864396800. Its totient is φ = 17557190640.

The previous prime is 55103626453. The next prime is 55103626471. The reversal of 55103626458 is 85462630155.

55103626458 is a `hidden beast` number, since 5 + 5 + 10 + 3 + 626 + 4 + 5 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (55103626451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1887013 + ... + 1915991.

It is an arithmetic number, because the mean of its divisors is an integer number (1997881200).

Almost surely, 2^55103626458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55103626458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63932198400).

55103626458 is an abundant number, since it is smaller than the sum of its proper divisors (72760770342).

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

55103626458 is a wasteful number, since it uses less digits than its factorization.

55103626458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30544 (or 30538 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 55103626458 in words is "fifty-five billion, one hundred three million, six hundred twenty-six thousand, four hundred fifty-eight".