54151687 has 4 divisors (see below), whose sum is σ = 54180000. Its totient is φ = 54123376.

The previous prime is 54151667. The next prime is 54151709. The reversal of 54151687 is 78615145.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54151687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54151667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11062 + ... + 15187.

It is an arithmetic number, because the mean of its divisors is an integer number (13545000).

Almost surely, 2^54151687 is an apocalyptic number.

54151687 is a deficient number, since it is larger than the sum of its proper divisors (28313).

54151687 is a wasteful number, since it uses less digits than its factorization.

54151687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28312.

The product of its digits is 33600, while the sum is 37.

The square root of 54151687 is about 7358.7829836190. The cubic root of 54151687 is about 378.3298982569.

The spelling of 54151687 in words is "fifty-four million, one hundred fifty-one thousand, six hundred eighty-seven".