51150176509 has 2 divisors, whose sum is σ = 51150176510. Its totient is φ = 51150176508.

The previous prime is 51150176471. The next prime is 51150176533. The reversal of 51150176509 is 90567105115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46116274009 + 5033902500 = 214747^2 + 70950^2 .

It is a cyclic number.

It is not a de Polignac number, because 51150176509 - 2⁹ = 51150175997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51150176549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25575088254 + 25575088255.

It is an arithmetic number, because the mean of its divisors is an integer number (25575088255).

Almost surely, 2^51150176509 is an apocalyptic number.

It is an amenable number.

51150176509 is a deficient number, since it is larger than the sum of its proper divisors (1).

51150176509 is an equidigital number, since it uses as much as digits as its factorization.

51150176509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47250, while the sum is 40.

The spelling of 51150176509 in words is "fifty-one billion, one hundred fifty million, one hundred seventy-six thousand, five hundred nine".