55005005055 has 64 divisors (see below), whose sum is σ = 118164630528. Its totient is φ = 21100815360.

The previous prime is 55005005047. The next prime is 55005005063. The reversal of 55005005055 is 55050050055.

It is an interprime number because it is at equal distance from previous prime (55005005047) and next prime (55005005063).

It is not a de Polignac number, because 55005005055 - 2³ = 55005005047 is a prime.

It is a super-2 number, since 2×55005005055² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1816654 + ... + 1846683.

It is an arithmetic number, because the mean of its divisors is an integer number (1846322352).

Almost surely, 2^55005005055 is an apocalyptic number.

55005005055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55005005055 is an abundant number, since it is smaller than the sum of its proper divisors (63159625473).

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

55005005055 is a wasteful number, since it uses less digits than its factorization.

55005005055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663376.

The product of its (nonzero) digits is 15625, while the sum is 30.

The spelling of 55005005055 in words is "fifty-five billion, five million, five thousand, fifty-five".