55277537 has 8 divisors (see below), whose sum is σ = 64464000. Its totient is φ = 47380452.

The previous prime is 55277531. The next prime is 55277539. The reversal of 55277537 is 73577255.

It is not a de Polignac number, because 55277537 - 2²² = 51083233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55277494 and 55277503.

It is not an unprimeable number, because it can be changed into a prime (55277531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80237 + ... + 80922.

It is an arithmetic number, because the mean of its divisors is an integer number (8058000).

Almost surely, 2^55277537 is an apocalyptic number.

It is an amenable number.

55277537 is a deficient number, since it is larger than the sum of its proper divisors (9186463).

55277537 is an equidigital number, since it uses as much as digits as its factorization.

55277537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161180 (or 161166 counting only the distinct ones).

The product of its digits is 257250, while the sum is 41.

The square root of 55277537 is about 7434.8864819848. The cubic root of 55277537 is about 380.9338458633.

The spelling of 55277537 in words is "fifty-five million, two hundred seventy-seven thousand, five hundred thirty-seven".