54280191 has 12 divisors (see below), whose sum is σ = 84189912. Its totient is φ = 31017168.

The previous prime is 54280157. The next prime is 54280211. The reversal of 54280191 is 19108245.

It is a happy number.

It is not a de Polignac number, because 54280191 - 2⁷ = 54280063 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54280151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184480 + ... + 184773.

It is an arithmetic number, because the mean of its divisors is an integer number (7015826).

Almost surely, 2^54280191 is an apocalyptic number.

54280191 is a deficient number, since it is larger than the sum of its proper divisors (29909721).

54280191 is a wasteful number, since it uses less digits than its factorization.

54280191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369270 (or 369263 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 54280191 is about 7367.5091448874. The cubic root of 54280191 is about 378.6289255632.

The spelling of 54280191 in words is "fifty-four million, two hundred eighty thousand, one hundred ninety-one".