511352042251 has 2 divisors, whose sum is σ = 511352042252. Its totient is φ = 511352042250.

The previous prime is 511352042233. The next prime is 511352042261. The reversal of 511352042251 is 152240253115.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511352042251 is a prime.

It is a super-2 number, since 2×511352042251² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511352042221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255676021125 + 255676021126.

It is an arithmetic number, because the mean of its divisors is an integer number (255676021126).

Almost surely, 2^511352042251 is an apocalyptic number.

511352042251 is a deficient number, since it is larger than the sum of its proper divisors (1).

511352042251 is an equidigital number, since it uses as much as digits as its factorization.

511352042251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 511352042251 its reverse (152240253115), we get a palindrome (663592295366).

The spelling of 511352042251 in words is "five hundred eleven billion, three hundred fifty-two million, forty-two thousand, two hundred fifty-one".