51294799 has 2 divisors, whose sum is σ = 51294800. Its totient is φ = 51294798.

The previous prime is 51294767. The next prime is 51294809. The reversal of 51294799 is 99749215.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51294799 - 2⁵ = 51294767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51294709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25647399 + 25647400.

It is an arithmetic number, because the mean of its divisors is an integer number (25647400).

Almost surely, 2^51294799 is an apocalyptic number.

51294799 is a deficient number, since it is larger than the sum of its proper divisors (1).

51294799 is an equidigital number, since it uses as much as digits as its factorization.

51294799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 46.

The square root of 51294799 is about 7162.0387460555. The cubic root of 51294799 is about 371.5561414224.

The spelling of 51294799 in words is "fifty-one million, two hundred ninety-four thousand, seven hundred ninety-nine".