51401299 has 2 divisors, whose sum is σ = 51401300. Its totient is φ = 51401298.

The previous prime is 51401279. The next prime is 51401303. The reversal of 51401299 is 99210415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51401299 - 2⁵ = 51401267 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51401299.

It is not a weakly prime, because it can be changed into another prime (51401219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25700649 + 25700650.

It is an arithmetic number, because the mean of its divisors is an integer number (25700650).

Almost surely, 2^51401299 is an apocalyptic number.

51401299 is a deficient number, since it is larger than the sum of its proper divisors (1).

51401299 is an equidigital number, since it uses as much as digits as its factorization.

51401299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 51401299 is about 7169.4699246179. The cubic root of 51401299 is about 371.8131094799.

The spelling of 51401299 in words is "fifty-one million, four hundred one thousand, two hundred ninety-nine".