506390954651 has 2 divisors, whose sum is σ = 506390954652. Its totient is φ = 506390954650.

The previous prime is 506390954611. The next prime is 506390954687. The reversal of 506390954651 is 156459093605.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 506390954651 - 2²⁶ = 506323845787 is a prime.

It is a super-2 number, since 2×506390954651² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 506390954593 and 506390954602.

It is not a weakly prime, because it can be changed into another prime (506390954611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253195477325 + 253195477326.

It is an arithmetic number, because the mean of its divisors is an integer number (253195477326).

Almost surely, 2^506390954651 is an apocalyptic number.

506390954651 is a deficient number, since it is larger than the sum of its proper divisors (1).

506390954651 is an equidigital number, since it uses as much as digits as its factorization.

506390954651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374000, while the sum is 53.

The spelling of 506390954651 in words is "five hundred six billion, three hundred ninety million, nine hundred fifty-four thousand, six hundred fifty-one".