511115051 has 2 divisors, whose sum is σ = 511115052. Its totient is φ = 511115050.

The previous prime is 511114999. The next prime is 511115057. The reversal of 511115051 is 150511115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 511115051 - 2²² = 506920747 is a prime.

It is a super-2 number, since 2×511115051² = 522477190717465202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511115057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255557525 + 255557526.

It is an arithmetic number, because the mean of its divisors is an integer number (255557526).

Almost surely, 2^511115051 is an apocalyptic number.

511115051 is a deficient number, since it is larger than the sum of its proper divisors (1).

511115051 is an equidigital number, since it uses as much as digits as its factorization.

511115051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 20.

The square root of 511115051 is about 22607.8537459884. The cubic root of 511115051 is about 799.5388232586.

Adding to 511115051 its reverse (150511115), we get a palindrome (661626166).

The spelling of 511115051 in words is "five hundred eleven million, one hundred fifteen thousand, fifty-one".