55250173 has 6 divisors (see below), whose sum is σ = 60729662. Its totient is φ = 50227320.

The previous prime is 55250159. The next prime is 55250177. The reversal of 55250173 is 37105255.

It can be written as a sum of positive squares in only one way, i.e., 52229529 + 3020644 = 7227^2 + 1738^2 .

It is a de Polignac number, because none of the positive numbers 2^k-55250173 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 (55250177) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228186 + ... + 228427.

Almost surely, 2^55250173 is an apocalyptic number.

It is an amenable number.

55250173 is a deficient number, since it is larger than the sum of its proper divisors (5479489).

55250173 is a wasteful number, since it uses less digits than its factorization.

55250173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456635 (or 456624 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55250173 is about 7433.0460108895. The cubic root of 55250173 is about 380.8709776843.

The spelling of 55250173 in words is "fifty-five million, two hundred fifty thousand, one hundred seventy-three".