55237377 has 16 divisors (see below), whose sum is σ = 79522688. Its totient is φ = 33903360.

The previous prime is 55237339. The next prime is 55237379. The reversal of 55237377 is 77373255.

It is a happy number.

It is not a de Polignac number, because 55237377 - 2⁷ = 55237249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55237379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15252 + ... + 18522.

It is an arithmetic number, because the mean of its divisors is an integer number (4970168).

Almost surely, 2^55237377 is an apocalyptic number.

It is an amenable number.

55237377 is a deficient number, since it is larger than the sum of its proper divisors (24285311).

55237377 is a wasteful number, since it uses less digits than its factorization.

55237377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720.

The product of its digits is 154350, while the sum is 39.

The square root of 55237377 is about 7432.1852102864. The cubic root of 55237377 is about 380.8415720369.

The spelling of 55237377 in words is "fifty-five million, two hundred thirty-seven thousand, three hundred seventy-seven".