51337971 has 12 divisors (see below), whose sum is σ = 74601072. Its totient is φ = 34019376.

The previous prime is 51337967. The next prime is 51337987. The reversal of 51337971 is 17973315.

51337971 is a `hidden beast` number, since 513 + 3 + 79 + 71 = 666.

It is not a de Polignac number, because 51337971 - 2² = 51337967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51337931) 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, 15576 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (6216756).

Almost surely, 2^51337971 is an apocalyptic number.

51337971 is a deficient number, since it is larger than the sum of its proper divisors (23263101).

51337971 is a wasteful number, since it uses less digits than its factorization.

51337971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34330 (or 34327 counting only the distinct ones).

The product of its digits is 19845, while the sum is 36.

The square root of 51337971 is about 7165.0520584292. The cubic root of 51337971 is about 371.6603516213.

The spelling of 51337971 in words is "fifty-one million, three hundred thirty-seven thousand, nine hundred seventy-one".