55237093 has 4 divisors (see below), whose sum is σ = 55284588. Its totient is φ = 55189600.

The previous prime is 55237051. The next prime is 55237103. The reversal of 55237093 is 39073255.

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 22724289 + 32512804 = 4767^2 + 5702^2 .

It is a cyclic number.

It is not a de Polignac number, because 55237093 - 2⁹ = 55236581 is a prime.

It is a super-2 number, since 2×55237093² = 6102272886181298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55237003) 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, 21958 + ... + 24343.

It is an arithmetic number, because the mean of its divisors is an integer number (13821147).

Almost surely, 2^55237093 is an apocalyptic number.

It is an amenable number.

55237093 is a deficient number, since it is larger than the sum of its proper divisors (47495).

55237093 is a wasteful number, since it uses less digits than its factorization.

55237093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47494.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 55237093 is about 7432.1661041718. The cubic root of 55237093 is about 380.8409193436.

The spelling of 55237093 in words is "fifty-five million, two hundred thirty-seven thousand, ninety-three".