51280677 has 24 divisors (see below), whose sum is σ = 89111360. Its totient is φ = 27760320.

The previous prime is 51280667. The next prime is 51280681. The reversal of 51280677 is 77608215.

51280677 is a `hidden beast` number, since 512 + 80 + 67 + 7 = 666.

It is not a de Polignac number, because 51280677 - 2⁷ = 51280549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51280667) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20224 + ... + 22617.

Almost surely, 2^51280677 is an apocalyptic number.

51280677 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

51280677 is a deficient number, since it is larger than the sum of its proper divisors (37830683).

51280677 is a wasteful number, since it uses less digits than its factorization.

51280677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42873 (or 42870 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 51280677 is about 7161.0527857292. The cubic root of 51280677 is about 371.5220405159.

The spelling of 51280677 in words is "fifty-one million, two hundred eighty thousand, six hundred seventy-seven".