54861265108831 has 4 divisors (see below), whose sum is σ = 54861296351752. Its totient is φ = 54861233865912.

The previous prime is 54861265108801. The next prime is 54861265108877. The reversal of 54861265108831 is 13880156216845.

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 54861265108831 - 2²⁵ = 54861231554399 is a prime.

It is a super-2 number, since 2×54861265108831² (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 (54861265108801) 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, 12820065 + ... + 16555258.

It is an arithmetic number, because the mean of its divisors is an integer number (13715324087938).

Almost surely, 2^{54861265108831} is an apocalyptic number.

54861265108831 is a deficient number, since it is larger than the sum of its proper divisors (31242921).

54861265108831 is a wasteful number, since it uses less digits than its factorization.

54861265108831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31242920.

The product of its (nonzero) digits is 11059200, while the sum is 58.

The spelling of 54861265108831 in words is "fifty-four trillion, eight hundred sixty-one billion, two hundred sixty-five million, one hundred eight thousand, eight hundred thirty-one".