55277616 has 40 divisors (see below), whose sum is σ = 143388144. Its totient is φ = 18350080.

The previous prime is 55277611. The next prime is 55277641. The reversal of 55277616 is 61677255.

It is a super-2 number, since 2×55277616² = 6111229661286912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55277611) 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, 10096 + ... + 14576.

Almost surely, 2^55277616 is an apocalyptic number.

It is an amenable number.

55277616 is an abundant number, since it is smaller than the sum of its proper divisors (88110528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55277616 is a wasteful number, since it uses less digits than its factorization.

55277616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4749 (or 4743 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 55277616 is about 7434.8917947742. The cubic root of 55277616 is about 380.9340273340.

The spelling of 55277616 in words is "fifty-five million, two hundred seventy-seven thousand, six hundred sixteen".