55726173 has 12 divisors (see below), whose sum is σ = 80654080. Its totient is φ = 37076616.

The previous prime is 55726159. The next prime is 55726199. The reversal of 55726173 is 37162755.

It is not a de Polignac number, because 55726173 - 2⁴ = 55726157 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 (55726133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213 + ... + 10626.

Almost surely, 2^55726173 is an apocalyptic number.

It is an amenable number.

55726173 is a deficient number, since it is larger than the sum of its proper divisors (24927907).

55726173 is a wasteful number, since it uses less digits than its factorization.

55726173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12368 (or 12365 counting only the distinct ones).

The product of its digits is 44100, while the sum is 36.

The square root of 55726173 is about 7464.9965170789. The cubic root of 55726173 is about 381.9616314268.

The spelling of 55726173 in words is "fifty-five million, seven hundred twenty-six thousand, one hundred seventy-three".