55500025055 has 4 divisors (see below), whose sum is σ = 66600030072. Its totient is φ = 44400020040.

The previous prime is 55500025039. The next prime is 55500025057. The reversal of 55500025055 is 55052000555.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55500025055 - 2⁴ = 55500025039 is a prime.

It is a super-2 number, since 2×55500025055² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55500025057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550002501 + ... + 5550002510.

It is an arithmetic number, because the mean of its divisors is an integer number (16650007518).

Almost surely, 2^55500025055 is an apocalyptic number.

55500025055 is a deficient number, since it is larger than the sum of its proper divisors (11100005017).

55500025055 is a wasteful number, since it uses less digits than its factorization.

55500025055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100005016.

The product of its (nonzero) digits is 31250, while the sum is 32.

The spelling of 55500025055 in words is "fifty-five billion, five hundred million, twenty-five thousand, fifty-five".