511212251057 has 2 divisors, whose sum is σ = 511212251058. Its totient is φ = 511212251056.

The previous prime is 511212251029. The next prime is 511212251093. The reversal of 511212251057 is 750152212115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 481724836096 + 29487414961 = 694064^2 + 171719^2 .

It is a cyclic number.

It is not a de Polignac number, because 511212251057 - 2³⁴ = 494032381873 is a prime.

It is a super-2 number, since 2×511212251057² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (511212251257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255606125528 + 255606125529.

It is an arithmetic number, because the mean of its divisors is an integer number (255606125529).

Almost surely, 2^511212251057 is an apocalyptic number.

It is an amenable number.

511212251057 is a deficient number, since it is larger than the sum of its proper divisors (1).

511212251057 is an equidigital number, since it uses as much as digits as its factorization.

511212251057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 32.

The spelling of 511212251057 in words is "five hundred eleven billion, two hundred twelve million, two hundred fifty-one thousand, fifty-seven".