55635500655 has 48 divisors (see below), whose sum is σ = 116011883520. Its totient is φ = 24094770624.

The previous prime is 55635500651. The next prime is 55635500659. The reversal of 55635500655 is 55600553655.

55635500655 is a `hidden beast` number, since 5 + 5 + 635 + 5 + 0 + 0 + 6 + 5 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (55635500651) and next prime (55635500659).

It is not a de Polignac number, because 55635500655 - 2² = 55635500651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55635500655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55635500651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4641927 + ... + 4653896.

It is an arithmetic number, because the mean of its divisors is an integer number (2416914240).

Almost surely, 2^55635500655 is an apocalyptic number.

55635500655 is an abundant number, since it is smaller than the sum of its proper divisors (60376382865).

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

55635500655 is a wasteful number, since it uses less digits than its factorization.

55635500655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9295860 (or 9295857 counting only the distinct ones).

The product of its (nonzero) digits is 1687500, while the sum is 45.

The spelling of 55635500655 in words is "fifty-five billion, six hundred thirty-five million, five hundred thousand, six hundred fifty-five".