55055205315631 has 4 divisors (see below), whose sum is σ = 55059408337000. Its totient is φ = 55051002294264.

The previous prime is 55055205315547. The next prime is 55055205315653. The reversal of 55055205315631 is 13651350255055.

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

It is a cyclic number.

It is not a de Polignac number, because 55055205315631 - 2¹³ = 55055205307439 is a prime.

It is a super-2 number, since 2×55055205315631² (a number of 28 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 (55055205315731) 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, 2101491036 + ... + 2101517233.

It is an arithmetic number, because the mean of its divisors is an integer number (13764852084250).

Almost surely, 2^{55055205315631} is an apocalyptic number.

55055205315631 is a deficient number, since it is larger than the sum of its proper divisors (4203021369).

55055205315631 is a wasteful number, since it uses less digits than its factorization.

55055205315631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4203021368.

The product of its (nonzero) digits is 1687500, while the sum is 46.

The spelling of 55055205315631 in words is "fifty-five trillion, fifty-five billion, two hundred five million, three hundred fifteen thousand, six hundred thirty-one".