55417327831 has 8 divisors (see below), whose sum is σ = 57332605680. Its totient is φ = 53502339072.

The previous prime is 55417327813. The next prime is 55417327843. The reversal of 55417327831 is 13872371455.

55417327831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 55417327831 - 2¹⁷ = 55417196759 is a prime.

It is a super-2 number, since 2×55417327831² (a number of 22 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 (55417327871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 362071 + ... + 491863.

It is an arithmetic number, because the mean of its divisors is an integer number (7166575710).

Almost surely, 2^55417327831 is an apocalyptic number.

55417327831 is a deficient number, since it is larger than the sum of its proper divisors (1915277849).

55417327831 is a wasteful number, since it uses less digits than its factorization.

55417327831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144545.

The product of its digits is 705600, while the sum is 46.

The spelling of 55417327831 in words is "fifty-five billion, four hundred seventeen million, three hundred twenty-seven thousand, eight hundred thirty-one".