511235532061 has 2 divisors, whose sum is σ = 511235532062. Its totient is φ = 511235532060.

The previous prime is 511235532053. The next prime is 511235532127. The reversal of 511235532061 is 160235532115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499325956900 + 11909575161 = 706630^2 + 109131^2 .

It is a cyclic number.

It is not a de Polignac number, because 511235532061 - 2³ = 511235532053 is a prime.

It is a super-2 number, since 2×511235532061² (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 (511235530061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255617766030 + 255617766031.

It is an arithmetic number, because the mean of its divisors is an integer number (255617766031).

Almost surely, 2^511235532061 is an apocalyptic number.

It is an amenable number.

511235532061 is a deficient number, since it is larger than the sum of its proper divisors (1).

511235532061 is an equidigital number, since it uses as much as digits as its factorization.

511235532061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 511235532061 in words is "five hundred eleven billion, two hundred thirty-five million, five hundred thirty-two thousand, sixty-one".