51366951 has 12 divisors (see below), whose sum is σ = 74371440. Its totient is φ = 34164000.

The previous prime is 51366929. The next prime is 51366977. The reversal of 51366951 is 15966315.

It is not a de Polignac number, because 51366951 - 2⁵ = 51366919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51366901) 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, 2550 + ... + 10451.

It is an arithmetic number, because the mean of its divisors is an integer number (6197620).

Almost surely, 2^51366951 is an apocalyptic number.

51366951 is a deficient number, since it is larger than the sum of its proper divisors (23004489).

51366951 is a wasteful number, since it uses less digits than its factorization.

51366951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13446 (or 13443 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 51366951 is about 7167.0740891943. The cubic root of 51366951 is about 371.7302718691.

The spelling of 51366951 in words is "fifty-one million, three hundred sixty-six thousand, nine hundred fifty-one".