255600051309 has 24 divisors (see below), whose sum is σ = 383626545120. Its totient is φ = 170065177776.

The previous prime is 255600051293. The next prime is 255600051331. The reversal of 255600051309 is 903150006552.

It is not a de Polignac number, because 255600051309 - 2⁴ = 255600051293 is a prime.

It is a super-2 number, since 2×255600051309² (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 (255600051359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 909567 + ... + 1156940.

It is an arithmetic number, because the mean of its divisors is an integer number (15984439380).

Almost surely, 2^255600051309 is an apocalyptic number.

It is an amenable number.

255600051309 is a deficient number, since it is larger than the sum of its proper divisors (128026493811).

255600051309 is an equidigital number, since it uses as much as digits as its factorization.

255600051309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067031 (or 2067019 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The spelling of 255600051309 in words is "two hundred fifty-five billion, six hundred million, fifty-one thousand, three hundred nine".