511051010551 has 2 divisors, whose sum is σ = 511051010552. Its totient is φ = 511051010550.

The previous prime is 511051010489. The next prime is 511051010557. The reversal of 511051010551 is 155010150115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 511051010551 - 2¹⁵ = 511050977783 is a prime.

It is a super-2 number, since 2×511051010551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (511051010557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255525505275 + 255525505276.

It is an arithmetic number, because the mean of its divisors is an integer number (255525505276).

Almost surely, 2^511051010551 is an apocalyptic number.

511051010551 is a deficient number, since it is larger than the sum of its proper divisors (1).

511051010551 is an equidigital number, since it uses as much as digits as its factorization.

511051010551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 625, while the sum is 25.

Adding to 511051010551 its reverse (155010150115), we get a palindrome (666061160666).

The spelling of 511051010551 in words is "five hundred eleven billion, fifty-one million, ten thousand, five hundred fifty-one".