51267959 has 2 divisors, whose sum is σ = 51267960. Its totient is φ = 51267958.

The previous prime is 51267949. The next prime is 51267967. The reversal of 51267959 is 95976215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51267959 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51267949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25633979 + 25633980.

It is an arithmetic number, because the mean of its divisors is an integer number (25633980).

Almost surely, 2^51267959 is an apocalyptic number.

51267959 is a deficient number, since it is larger than the sum of its proper divisors (1).

51267959 is an equidigital number, since it uses as much as digits as its factorization.

51267959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 44.

The square root of 51267959 is about 7160.1647327418. The cubic root of 51267959 is about 371.4913245409.

The spelling of 51267959 in words is "fifty-one million, two hundred sixty-seven thousand, nine hundred fifty-nine".