55237693 has 12 divisors (see below), whose sum is σ = 66629280. Its totient is φ = 44852616.

The previous prime is 55237673. The next prime is 55237729. The reversal of 55237693 is 39673255.

It is not a de Polignac number, because 55237693 - 2⁵ = 55237661 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 (55237613) 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, 8403 + ... + 13456.

It is an arithmetic number, because the mean of its divisors is an integer number (5552440).

Almost surely, 2^55237693 is an apocalyptic number.

It is an amenable number.

55237693 is a deficient number, since it is larger than the sum of its proper divisors (11391587).

55237693 is a wasteful number, since it uses less digits than its factorization.

55237693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21904 (or 21885 counting only the distinct ones).

The product of its digits is 170100, while the sum is 40.

The square root of 55237693 is about 7432.2064691449. The cubic root of 55237693 is about 380.8422982704.

The spelling of 55237693 in words is "fifty-five million, two hundred thirty-seven thousand, six hundred ninety-three".