105550555631 has 2 divisors, whose sum is σ = 105550555632. Its totient is φ = 105550555630.

The previous prime is 105550555577. The next prime is 105550555633. The reversal of 105550555631 is 136555055501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105550555631 is a prime.

It is a super-2 number, since 2×105550555631² (a number of 23 digits) contains 22 as substring.

Together with 105550555633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105550555633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52775277815 + 52775277816.

It is an arithmetic number, because the mean of its divisors is an integer number (52775277816).

Almost surely, 2^105550555631 is an apocalyptic number.

105550555631 is a deficient number, since it is larger than the sum of its proper divisors (1).

105550555631 is an equidigital number, since it uses as much as digits as its factorization.

105550555631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 281250, while the sum is 41.

The spelling of 105550555631 in words is "one hundred five billion, five hundred fifty million, five hundred fifty-five thousand, six hundred thirty-one".