55553345554 has 24 divisors (see below), whose sum is σ = 96995739708. Its totient is φ = 23793638400.

The previous prime is 55553345539. The next prime is 55553345587. The reversal of 55553345554 is 45554335555.

55553345554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 55401390625 + 151954929 = 235375^2 + 12327^2 .

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 55553345498 and 55553345507.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20139 + ... + 333934.

Almost surely, 2^55553345554 is an apocalyptic number.

55553345554 is a deficient number, since it is larger than the sum of its proper divisors (41442394154).

55553345554 is a wasteful number, since it uses less digits than its factorization.

55553345554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355690 (or 355683 counting only the distinct ones).

The product of its digits is 11250000, while the sum is 49.

Subtracting from 55553345554 its reverse (45554335555), we obtain a palindrome (9999009999).

The spelling of 55553345554 in words is "fifty-five billion, five hundred fifty-three million, three hundred forty-five thousand, five hundred fifty-four".