54872687 has 16 divisors (see below), whose sum is σ = 59228928. Its totient is φ = 50709120.

The previous prime is 54872681. The next prime is 54872723. The reversal of 54872687 is 78627845.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54872687 is a prime.

It is a super-2 number, since 2×54872687² = 6022023557199938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54872681) 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, 111512 + ... + 112002.

It is an arithmetic number, because the mean of its divisors is an integer number (3701808).

Almost surely, 2^54872687 is an apocalyptic number.

54872687 is a deficient number, since it is larger than the sum of its proper divisors (4356241).

54872687 is a wasteful number, since it uses less digits than its factorization.

54872687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

The product of its digits is 752640, while the sum is 47.

The square root of 54872687 is about 7407.6100734312. The cubic root of 54872687 is about 380.0015858660.

The spelling of 54872687 in words is "fifty-four million, eight hundred seventy-two thousand, six hundred eighty-seven".