509187926053 has 2 divisors, whose sum is σ = 509187926054. Its totient is φ = 509187926052.

The previous prime is 509187926003. The next prime is 509187926077. The reversal of 509187926053 is 350629781905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312590573604 + 196597352449 = 559098^2 + 443393^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-509187926053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 509187925985 and 509187926003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509187926003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254593963026 + 254593963027.

It is an arithmetic number, because the mean of its divisors is an integer number (254593963027).

Almost surely, 2^509187926053 is an apocalyptic number.

It is an amenable number.

509187926053 is a deficient number, since it is larger than the sum of its proper divisors (1).

509187926053 is an equidigital number, since it uses as much as digits as its factorization.

509187926053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 509187926053 in words is "five hundred nine billion, one hundred eighty-seven million, nine hundred twenty-six thousand, fifty-three".