54440510091 has 32 divisors (see below), whose sum is σ = 79966725120. Its totient is φ = 32942143520.

The previous prime is 54440510087. The next prime is 54440510093. The reversal of 54440510091 is 19001504445.

It is not a de Polignac number, because 54440510091 - 2² = 54440510087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (54440510093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2596990 + ... + 2617868.

It is an arithmetic number, because the mean of its divisors is an integer number (2498960160).

Almost surely, 2^54440510091 is an apocalyptic number.

54440510091 is a deficient number, since it is larger than the sum of its proper divisors (25526215029).

54440510091 is a wasteful number, since it uses less digits than its factorization.

54440510091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21568 (or 21546 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 54440510091 in words is "fifty-four billion, four hundred forty million, five hundred ten thousand, ninety-one".