55005601560631 has 2 divisors, whose sum is σ = 55005601560632. Its totient is φ = 55005601560630.

The previous prime is 55005601560601. The next prime is 55005601560709. The reversal of 55005601560631 is 13606510650055.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55005601560631 - 2⁴³ = 46209508538423 is a prime.

It is a super-2 number, since 2×55005601560631² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55005601560601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27502800780315 + 27502800780316.

It is an arithmetic number, because the mean of its divisors is an integer number (27502800780316).

Almost surely, 2^{55005601560631} is an apocalyptic number.

55005601560631 is a deficient number, since it is larger than the sum of its proper divisors (1).

55005601560631 is an equidigital number, since it uses as much as digits as its factorization.

55005601560631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 405000, while the sum is 43.

The spelling of 55005601560631 in words is "fifty-five trillion, five billion, six hundred one million, five hundred sixty thousand, six hundred thirty-one".