54840291 has 8 divisors (see below), whose sum is σ = 79767744. Its totient is φ = 33236520.

The previous prime is 54840259. The next prime is 54840293. The reversal of 54840291 is 19204845.

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

It is not a de Polignac number, because 54840291 - 2⁵ = 54840259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 1661827 = 54840291 / (5 + 4 + 8 + 4 + 0 + 2 + 9 + 1).

It is not an unprimeable number, because it can be changed into a prime (54840293) 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, 830881 + ... + 830946.

It is an arithmetic number, because the mean of its divisors is an integer number (9970968).

Almost surely, 2^54840291 is an apocalyptic number.

54840291 is a deficient number, since it is larger than the sum of its proper divisors (24927453).

54840291 is a wasteful number, since it uses less digits than its factorization.

54840291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661841.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 54840291 is about 7405.4230804188. The cubic root of 54840291 is about 379.9267887584.

The spelling of 54840291 in words is "fifty-four million, eight hundred forty thousand, two hundred ninety-one".