55613031655 has 8 divisors (see below), whose sum is σ = 67085040384. Its totient is φ = 44257490400.

The previous prime is 55613031619. The next prime is 55613031709.

It is a happy number.

55613031655 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55613031655 - 2⁷ = 55613031527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29115816 + ... + 29117725.

It is an arithmetic number, because the mean of its divisors is an integer number (8385630048).

Almost surely, 2^55613031655 is an apocalyptic number.

55613031655 is a deficient number, since it is larger than the sum of its proper divisors (11472008729).

55613031655 is a wasteful number, since it uses less digits than its factorization.

55613031655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58233737.

The product of its (nonzero) digits is 202500, while the sum is 40.

It can be divided in two parts, 556130 and 31655, that added together give a palindrome (587785).

The spelling of 55613031655 in words is "fifty-five billion, six hundred thirteen million, thirty-one thousand, six hundred fifty-five".