55415635144 has 64 divisors (see below), whose sum is σ = 112412160000. Its totient is φ = 25530043968.

The previous prime is 55415635141. The next prime is 55415635147. The reversal of 55415635144 is 44153651455.

It is an interprime number because it is at equal distance from previous prime (55415635141) and next prime (55415635147).

It is a self number, because there is not a number n which added to its sum of digits gives 55415635144.

It is not an unprimeable number, because it can be changed into a prime (55415635141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770097 + ... + 838975.

It is an arithmetic number, because the mean of its divisors is an integer number (1756440000).

Almost surely, 2^55415635144 is an apocalyptic number.

It is an amenable number.

55415635144 is an abundant number, since it is smaller than the sum of its proper divisors (56996524856).

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

55415635144 is a wasteful number, since it uses less digits than its factorization.

55415635144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69050 (or 69046 counting only the distinct ones).

The product of its digits is 720000, while the sum is 43.

The spelling of 55415635144 in words is "fifty-five billion, four hundred fifteen million, six hundred thirty-five thousand, one hundred forty-four".