55904102645 has 4 divisors (see below), whose sum is σ = 67084923180. Its totient is φ = 44723282112.

The previous prime is 55904102609. The next prime is 55904102663. The reversal of 55904102645 is 54620140955.

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

It can be written as a sum of positive squares in 2 ways, for example, as 41088100804 + 14816001841 = 202702^2 + 121721^2 .

It is a cyclic number.

It is not a de Polignac number, because 55904102645 - 2¹⁰ = 55904101621 is a prime.

It is a super-3 number, since 3×55904102645³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5590410260 + ... + 5590410269.

It is an arithmetic number, because the mean of its divisors is an integer number (16771230795).

Almost surely, 2^55904102645 is an apocalyptic number.

It is an amenable number.

55904102645 is a deficient number, since it is larger than the sum of its proper divisors (11180820535).

55904102645 is a wasteful number, since it uses less digits than its factorization.

55904102645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11180820534.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 55904102645 in words is "fifty-five billion, nine hundred four million, one hundred two thousand, six hundred forty-five".