51599291 has 2 divisors, whose sum is σ = 51599292. Its totient is φ = 51599290.

The previous prime is 51599287. The next prime is 51599309. The reversal of 51599291 is 19299515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51599291 - 2² = 51599287 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51599491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25799645 + 25799646.

It is an arithmetic number, because the mean of its divisors is an integer number (25799646).

Almost surely, 2^51599291 is an apocalyptic number.

51599291 is a deficient number, since it is larger than the sum of its proper divisors (1).

51599291 is an equidigital number, since it uses as much as digits as its factorization.

51599291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36450, while the sum is 41.

The square root of 51599291 is about 7183.2646477768. The cubic root of 51599291 is about 372.2898918710.

The spelling of 51599291 in words is "fifty-one million, five hundred ninety-nine thousand, two hundred ninety-one".