51051100040519 has 2 divisors, whose sum is σ = 51051100040520. Its totient is φ = 51051100040518.

The previous prime is 51051100040467. The next prime is 51051100040539. The reversal of 51051100040519 is 91504000115015.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51051100040519 - 2²⁴ = 51051083263303 is a prime.

It is a super-2 number, since 2×51051100040519² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51051100040539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525550020259 + 25525550020260.

It is an arithmetic number, because the mean of its divisors is an integer number (25525550020260).

Almost surely, 2^{51051100040519} is an apocalyptic number.

51051100040519 is a deficient number, since it is larger than the sum of its proper divisors (1).

51051100040519 is an equidigital number, since it uses as much as digits as its factorization.

51051100040519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 51051100040519 in words is "fifty-one trillion, fifty-one billion, one hundred million, forty thousand, five hundred nineteen".