55294887 has 4 divisors (see below), whose sum is σ = 73726520. Its totient is φ = 36863256.

The previous prime is 55294873. The next prime is 55294903. The reversal of 55294887 is 78849255.

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

It is not a de Polignac number, because 55294887 - 2²² = 51100583 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 (55299887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9215812 + ... + 9215817.

It is an arithmetic number, because the mean of its divisors is an integer number (18431630).

Almost surely, 2^55294887 is an apocalyptic number.

55294887 is a deficient number, since it is larger than the sum of its proper divisors (18431633).

55294887 is a wasteful number, since it uses less digits than its factorization.

55294887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18431632.

The product of its digits is 806400, while the sum is 48.

The square root of 55294887 is about 7436.0531870072. The cubic root of 55294887 is about 380.9736963537.

The spelling of 55294887 in words is "fifty-five million, two hundred ninety-four thousand, eight hundred eighty-seven".