51534269 has 2 divisors, whose sum is σ = 51534270. Its totient is φ = 51534268.

The previous prime is 51534233. The next prime is 51534271. The reversal of 51534269 is 96243515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27426169 + 24108100 = 5237^2 + 4910^2 .

It is a cyclic number.

It is not a de Polignac number, because 51534269 - 2⁸ = 51534013 is a prime.

It is a super-2 number, since 2×51534269² = 5311561762728722, which contains 22 as substring.

Together with 51534271, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51539269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25767134 + 25767135.

It is an arithmetic number, because the mean of its divisors is an integer number (25767135).

Almost surely, 2^51534269 is an apocalyptic number.

It is an amenable number.

51534269 is a deficient number, since it is larger than the sum of its proper divisors (1).

51534269 is an equidigital number, since it uses as much as digits as its factorization.

51534269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

The square root of 51534269 is about 7178.7372845090. The cubic root of 51534269 is about 372.1334478060.

The spelling of 51534269 in words is "fifty-one million, five hundred thirty-four thousand, two hundred sixty-nine".