555404622631 has 4 divisors (see below), whose sum is σ = 574556506200. Its totient is φ = 536252739064.

The previous prime is 555404622607. The next prime is 555404622637. The reversal of 555404622631 is 136226404555.

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 555404622631 - 2⁵ = 555404622599 is a prime.

It is a super-2 number, since 2×555404622631² (a number of 24 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 (555404622637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9575941741 + ... + 9575941798.

It is an arithmetic number, because the mean of its divisors is an integer number (143639126550).

Almost surely, 2^555404622631 is an apocalyptic number.

555404622631 is a deficient number, since it is larger than the sum of its proper divisors (19151883569).

555404622631 is a wasteful number, since it uses less digits than its factorization.

555404622631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19151883568.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 555404622631 in words is "five hundred fifty-five billion, four hundred four million, six hundred twenty-two thousand, six hundred thirty-one".