55277667 has 16 divisors (see below), whose sum is σ = 84107680. Its totient is φ = 35855136.

The previous prime is 55277653. The next prime is 55277713. The reversal of 55277667 is 76677255.

It is not a de Polignac number, because 55277667 - 2⁷ = 55277539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55276667) 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, 26668 + ... + 28665.

It is an arithmetic number, because the mean of its divisors is an integer number (5256730).

Almost surely, 2^55277667 is an apocalyptic number.

55277667 is a deficient number, since it is larger than the sum of its proper divisors (28830013).

55277667 is a wasteful number, since it uses less digits than its factorization.

55277667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55379 (or 55373 counting only the distinct ones).

The product of its digits is 617400, while the sum is 45.

The square root of 55277667 is about 7434.8952245476. The cubic root of 55277667 is about 380.9341444859.

The spelling of 55277667 in words is "fifty-five million, two hundred seventy-seven thousand, six hundred sixty-seven".