55537237 has 12 divisors (see below), whose sum is σ = 65426880. Its totient is φ = 46997496.

The previous prime is 55537189. The next prime is 55537241. The reversal of 55537237 is 73273555.

It is not a de Polignac number, because 55537237 - 2¹⁹ = 55012949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55537196 and 55537205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55537277) 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, 3303 + ... + 11044.

It is an arithmetic number, because the mean of its divisors is an integer number (5452240).

Almost surely, 2^55537237 is an apocalyptic number.

It is an amenable number.

55537237 is a deficient number, since it is larger than the sum of its proper divisors (9889643).

55537237 is a wasteful number, since it uses less digits than its factorization.

55537237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14440 (or 14433 counting only the distinct ones).

The product of its digits is 110250, while the sum is 37.

The square root of 55537237 is about 7452.3309776204. The cubic root of 55537237 is about 381.5294705511.

The spelling of 55537237 in words is "fifty-five million, five hundred thirty-seven thousand, two hundred thirty-seven".