51874231 has 2 divisors, whose sum is σ = 51874232. Its totient is φ = 51874230.

The previous prime is 51874181. The next prime is 51874247. The reversal of 51874231 is 13247815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51874231 - 2⁷ = 51874103 is a prime.

It is a super-2 number, since 2×51874231² = 5381871683682722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51874193 and 51874202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51874271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25937115 + 25937116.

It is an arithmetic number, because the mean of its divisors is an integer number (25937116).

Almost surely, 2^51874231 is an apocalyptic number.

51874231 is a deficient number, since it is larger than the sum of its proper divisors (1).

51874231 is an equidigital number, since it uses as much as digits as its factorization.

51874231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 31.

The square root of 51874231 is about 7202.3767604868. The cubic root of 51874231 is about 372.9499533944.

The spelling of 51874231 in words is "fifty-one million, eight hundred seventy-four thousand, two hundred thirty-one".