55277519 has 12 divisors (see below), whose sum is σ = 62406792. Its totient is φ = 48890160.

The previous prime is 55277491. The next prime is 55277531. The reversal of 55277519 is 91577255.

It is not a de Polignac number, because 55277519 - 2¹² = 55273423 is a prime.

It is a super-2 number, since 2×55277519² = 6111208213590722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55277539) 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, 1697 + ... + 10650.

It is an arithmetic number, because the mean of its divisors is an integer number (5200566).

Almost surely, 2^55277519 is an apocalyptic number.

55277519 is a deficient number, since it is larger than the sum of its proper divisors (7129273).

55277519 is a wasteful number, since it uses less digits than its factorization.

55277519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12406 (or 12395 counting only the distinct ones).

The product of its digits is 110250, while the sum is 41.

The square root of 55277519 is about 7434.8852714753. The cubic root of 55277519 is about 380.9338045155.

The spelling of 55277519 in words is "fifty-five million, two hundred seventy-seven thousand, five hundred nineteen".