55553917155 has 32 divisors (see below), whose sum is σ = 97474572288. Its totient is φ = 26794195200.

The previous prime is 55553917129. The next prime is 55553917171. The reversal of 55553917155 is 55171935555.

It is a happy number.

55553917155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55553917155 - 2¹⁷ = 55553786083 is a prime.

It is a super-2 number, since 2×55553917155² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55553917098 and 55553917107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 849874 + ... + 912903.

It is an arithmetic number, because the mean of its divisors is an integer number (3046080384).

Almost surely, 2^55553917155 is an apocalyptic number.

55553917155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55553917155 is a deficient number, since it is larger than the sum of its proper divisors (41920655133).

55553917155 is a wasteful number, since it uses less digits than its factorization.

55553917155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762987.

The product of its digits is 2953125, while the sum is 51.

The spelling of 55553917155 in words is "fifty-five billion, five hundred fifty-three million, nine hundred seventeen thousand, one hundred fifty-five".