55463687 has 4 divisors (see below), whose sum is σ = 55773720. Its totient is φ = 55153656.

The previous prime is 55463663. The next prime is 55463719. The reversal of 55463687 is 78636455.

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 55463687 - 2¹⁰ = 55462663 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 (55463657) 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, 154748 + ... + 155105.

It is an arithmetic number, because the mean of its divisors is an integer number (13943430).

Almost surely, 2^55463687 is an apocalyptic number.

55463687 is a deficient number, since it is larger than the sum of its proper divisors (310033).

55463687 is a wasteful number, since it uses less digits than its factorization.

55463687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310032.

The product of its digits is 604800, while the sum is 44.

The square root of 55463687 is about 7447.3946451091. The cubic root of 55463687 is about 381.3609716555.

The spelling of 55463687 in words is "fifty-five million, four hundred sixty-three thousand, six hundred eighty-seven".