51376231 has 2 divisors, whose sum is σ = 51376232. Its totient is φ = 51376230.

The previous prime is 51376223. The next prime is 51376249. The reversal of 51376231 is 13267315.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51376231 - 2³ = 51376223 is a prime.

It is a super-2 number, since 2×51376231² = 5279034223530722, which contains 22 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 51376231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51376211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25688115 + 25688116.

It is an arithmetic number, because the mean of its divisors is an integer number (25688116).

Almost surely, 2^51376231 is an apocalyptic number.

51376231 is a deficient number, since it is larger than the sum of its proper divisors (1).

51376231 is an equidigital number, since it uses as much as digits as its factorization.

51376231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3780, while the sum is 28.

The square root of 51376231 is about 7167.7214650124. The cubic root of 51376231 is about 371.7526562306.

The spelling of 51376231 in words is "fifty-one million, three hundred seventy-six thousand, two hundred thirty-one".