51148759 has 2 divisors, whose sum is σ = 51148760. Its totient is φ = 51148758.

The previous prime is 51148751. The next prime is 51148777. The reversal of 51148759 is 95784115.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51148759 - 2³ = 51148751 is a 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 (51148751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25574379 + 25574380.

It is an arithmetic number, because the mean of its divisors is an integer number (25574380).

Almost surely, 2^51148759 is an apocalyptic number.

51148759 is a deficient number, since it is larger than the sum of its proper divisors (1).

51148759 is an equidigital number, since it uses as much as digits as its factorization.

51148759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 40.

The square root of 51148759 is about 7151.8360579644. The cubic root of 51148759 is about 371.2031905219.

The spelling of 51148759 in words is "fifty-one million, one hundred forty-eight thousand, seven hundred fifty-nine".