55122573 has 32 divisors (see below), whose sum is σ = 83026944. Its totient is φ = 32240000.

The previous prime is 55122527. The next prime is 55122581. The reversal of 55122573 is 37522155.

It is a cyclic number.

It is not a de Polignac number, because 55122573 - 2⁸ = 55122317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55122573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55122583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 177088 + ... + 177398.

It is an arithmetic number, because the mean of its divisors is an integer number (2594592).

Almost surely, 2^55122573 is an apocalyptic number.

It is an amenable number.

55122573 is a deficient number, since it is larger than the sum of its proper divisors (27904371).

55122573 is a wasteful number, since it uses less digits than its factorization.

55122573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its digits is 10500, while the sum is 30.

The square root of 55122573 is about 7424.4577579780. The cubic root of 55122573 is about 380.5775451311.

The spelling of 55122573 in words is "fifty-five million, one hundred twenty-two thousand, five hundred seventy-three".