51214259 has 2 divisors, whose sum is σ = 51214260. Its totient is φ = 51214258.

The previous prime is 51214231. The next prime is 51214279. The reversal of 51214259 is 95241215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51214259 - 2⁸ = 51214003 is a prime.

It is not a weakly prime, because it can be changed into another prime (51214279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25607129 + 25607130.

It is an arithmetic number, because the mean of its divisors is an integer number (25607130).

Almost surely, 2^51214259 is an apocalyptic number.

51214259 is a deficient number, since it is larger than the sum of its proper divisors (1).

51214259 is an equidigital number, since it uses as much as digits as its factorization.

51214259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 29.

The square root of 51214259 is about 7156.4138365525. The cubic root of 51214259 is about 371.3615745391.

The spelling of 51214259 in words is "fifty-one million, two hundred fourteen thousand, two hundred fifty-nine".