54656887 has 4 divisors (see below), whose sum is σ = 57872016. Its totient is φ = 51441760.

The previous prime is 54656879. The next prime is 54656891. The reversal of 54656887 is 78865645.

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 54656887 - 2³ = 54656879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54656887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54656837) 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, 1607539 + ... + 1607572.

It is an arithmetic number, because the mean of its divisors is an integer number (14468004).

Almost surely, 2^54656887 is an apocalyptic number.

54656887 is a deficient number, since it is larger than the sum of its proper divisors (3215129).

54656887 is a wasteful number, since it uses less digits than its factorization.

54656887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215128.

The product of its digits is 1612800, while the sum is 49.

The square root of 54656887 is about 7393.0296225566. The cubic root of 54656887 is about 379.5027822851.

The spelling of 54656887 in words is "fifty-four million, six hundred fifty-six thousand, eight hundred eighty-seven".