51930297 has 12 divisors (see below), whose sum is σ = 78272064. Its totient is φ = 33114840.

The previous prime is 51930289. The next prime is 51930299. The reversal of 51930297 is 79203915.

It is not a de Polignac number, because 51930297 - 2³ = 51930289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51930299) 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, 125229 + ... + 125642.

It is an arithmetic number, because the mean of its divisors is an integer number (6522672).

Almost surely, 2^51930297 is an apocalyptic number.

It is an amenable number.

51930297 is a deficient number, since it is larger than the sum of its proper divisors (26341767).

51930297 is a wasteful number, since it uses less digits than its factorization.

51930297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250900 (or 250897 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 51930297 is about 7206.2678967688. The cubic root of 51930297 is about 373.0842672470.

The spelling of 51930297 in words is "fifty-one million, nine hundred thirty thousand, two hundred ninety-seven".