54120404015 has 4 divisors (see below), whose sum is σ = 64944484824. Its totient is φ = 43296323208.

The previous prime is 54120403969. The next prime is 54120404087. The reversal of 54120404015 is 51040402145.

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 54120404015 - 2²² = 54116209711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5412040397 + ... + 5412040406.

It is an arithmetic number, because the mean of its divisors is an integer number (16236121206).

Almost surely, 2^54120404015 is an apocalyptic number.

54120404015 is a deficient number, since it is larger than the sum of its proper divisors (10824080809).

54120404015 is a wasteful number, since it uses less digits than its factorization.

54120404015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10824080808.

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 54120404015 in words is "fifty-four billion, one hundred twenty million, four hundred four thousand, fifteen".