54081687 has 16 divisors (see below), whose sum is σ = 79365888. Its totient is φ = 32484480.

The previous prime is 54081673. The next prime is 54081691. The reversal of 54081687 is 78618045.

It is not a de Polignac number, because 54081687 - 2⁸ = 54081431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54081617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3523 + ... + 10980.

It is an arithmetic number, because the mean of its divisors is an integer number (4960368).

Almost surely, 2^54081687 is an apocalyptic number.

54081687 is a deficient number, since it is larger than the sum of its proper divisors (25284201).

54081687 is a wasteful number, since it uses less digits than its factorization.

54081687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14630.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 54081687 is about 7354.0252243244. The cubic root of 54081687 is about 378.1668100024.

The spelling of 54081687 in words is "fifty-four million, eighty-one thousand, six hundred eighty-seven".