51744967 has 2 divisors, whose sum is σ = 51744968. Its totient is φ = 51744966.

The previous prime is 51744949. The next prime is 51744977. The reversal of 51744967 is 76944715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51744967 - 2²³ = 43356359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51744937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25872483 + 25872484.

It is an arithmetic number, because the mean of its divisors is an integer number (25872484).

Almost surely, 2^51744967 is an apocalyptic number.

51744967 is a deficient number, since it is larger than the sum of its proper divisors (1).

51744967 is an equidigital number, since it uses as much as digits as its factorization.

51744967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 43.

The square root of 51744967 is about 7193.3974587812. The cubic root of 51744967 is about 372.6399144087.

The spelling of 51744967 in words is "fifty-one million, seven hundred forty-four thousand, nine hundred sixty-seven".