511125206260 has 12 divisors (see below), whose sum is σ = 1073362933188. Its totient is φ = 204450082496.

The previous prime is 511125206239. The next prime is 511125206261. The reversal of 511125206260 is 62602521115.

It can be written as a sum of positive squares in 2 ways, for example, as 361119268624 + 150005937636 = 600932^2 + 387306^2 .

It is a super-2 number, since 2×511125206260² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511125206261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12778130137 + ... + 12778130176.

It is an arithmetic number, because the mean of its divisors is an integer number (89446911099).

Almost surely, 2^511125206260 is an apocalyptic number.

It is an amenable number.

511125206260 is an abundant number, since it is smaller than the sum of its proper divisors (562237726928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511125206260 is a wasteful number, since it uses less digits than its factorization.

511125206260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25556260322 (or 25556260320 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 511125206260 its reverse (62602521115), we get a palindrome (573727727375).

The spelling of 511125206260 in words is "five hundred eleven billion, one hundred twenty-five million, two hundred six thousand, two hundred sixty".