51098231 has 2 divisors, whose sum is σ = 51098232. Its totient is φ = 51098230.

The previous prime is 51098183. The next prime is 51098237. The reversal of 51098231 is 13289015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51098231 - 2¹⁸ = 50836087 is a prime.

It is a super-2 number, since 2×51098231² = 5222058422658722, which contains 22 as substring.

It is equal to p_3062972 and since 51098231 and 3062972 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 51098194 and 51098203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51098237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25549115 + 25549116.

It is an arithmetic number, because the mean of its divisors is an integer number (25549116).

Almost surely, 2^51098231 is an apocalyptic number.

51098231 is a deficient number, since it is larger than the sum of its proper divisors (1).

51098231 is an equidigital number, since it uses as much as digits as its factorization.

51098231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 51098231 is about 7148.3026656683. The cubic root of 51098231 is about 371.0809175365.

The spelling of 51098231 in words is "fifty-one million, ninety-eight thousand, two hundred thirty-one".