51032277 has 12 divisors (see below), whose sum is σ = 74430304. Its totient is φ = 33690600.

The previous prime is 51032273. The next prime is 51032291. The reversal of 51032277 is 77223015.

It is not a de Polignac number, because 51032277 - 2² = 51032273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51032277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51032273) 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, 26599 + ... + 28452.

Almost surely, 2^51032277 is an apocalyptic number.

It is an amenable number.

51032277 is a deficient number, since it is larger than the sum of its proper divisors (23398027).

51032277 is a wasteful number, since it uses less digits than its factorization.

51032277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55160 (or 55157 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 51032277 is about 7143.6879131160. The cubic root of 51032277 is about 370.9211937535.

The spelling of 51032277 in words is "fifty-one million, thirty-two thousand, two hundred seventy-seven".