54669520891 has 8 divisors (see below), whose sum is σ = 55599801840. Its totient is φ = 53739362688.

The previous prime is 54669520889. The next prime is 54669520943. The reversal of 54669520891 is 19802596645.

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 54669520891 - 2¹ = 54669520889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54669520691) 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, 1576855 + ... + 1611151.

It is an arithmetic number, because the mean of its divisors is an integer number (6949975230).

Almost surely, 2^54669520891 is an apocalyptic number.

54669520891 is a deficient number, since it is larger than the sum of its proper divisors (930280949).

54669520891 is a wasteful number, since it uses less digits than its factorization.

54669520891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61373.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 54669520891 in words is "fifty-four billion, six hundred sixty-nine million, five hundred twenty thousand, eight hundred ninety-one".