55112573 has 4 divisors (see below), whose sum is σ = 56602140. Its totient is φ = 53623008.

The previous prime is 55112537. The next prime is 55112579. The reversal of 55112573 is 37521155.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47914084 + 7198489 = 6922^2 + 2683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55112573 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 (55112579) 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, 744728 + ... + 744801.

It is an arithmetic number, because the mean of its divisors is an integer number (14150535).

Almost surely, 2^55112573 is an apocalyptic number.

It is an amenable number.

55112573 is a deficient number, since it is larger than the sum of its proper divisors (1489567).

55112573 is a wasteful number, since it uses less digits than its factorization.

55112573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489566.

The product of its digits is 5250, while the sum is 29.

The square root of 55112573 is about 7423.7842775770. The cubic root of 55112573 is about 380.5545297226.

The spelling of 55112573 in words is "fifty-five million, one hundred twelve thousand, five hundred seventy-three".