51400799 has 2 divisors, whose sum is σ = 51400800. Its totient is φ = 51400798.

The previous prime is 51400753. The next prime is 51400813. The reversal of 51400799 is 99700415.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51400799 - 2¹² = 51396703 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 (51400709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25700399 + 25700400.

It is an arithmetic number, because the mean of its divisors is an integer number (25700400).

Almost surely, 2^51400799 is an apocalyptic number.

51400799 is a deficient number, since it is larger than the sum of its proper divisors (1).

51400799 is an equidigital number, since it uses as much as digits as its factorization.

51400799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 51400799 is about 7169.4350544516. The cubic root of 51400799 is about 371.8119038868.

The spelling of 51400799 in words is "fifty-one million, four hundred thousand, seven hundred ninety-nine".