255756565657552 has 20 divisors (see below), whose sum is σ = 495530983932516. Its totient is φ = 127877602062080.

The previous prime is 255756565657543. The next prime is 255756565657561.

255756565657552 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (255756565657543) and next prime (255756565657561).

It can be written as a sum of positive squares in 2 ways, for example, as 175610097225616 + 80146468431936 = 13251796^2 + 8952456^2 .

It is a super-2 number, since 2×255756565657552² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39441613 + ... + 45465964.

Almost surely, 2^{255756565657552} is an apocalyptic number.

It is an amenable number.

255756565657552 is a deficient number, since it is larger than the sum of its proper divisors (239774418274964).

255756565657552 is a wasteful number, since it uses less digits than its factorization.

255756565657552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85095846 (or 85095840 counting only the distinct ones).

The product of its digits is 16537500000, while the sum is 76.

The spelling of 255756565657552 in words is "two hundred fifty-five trillion, seven hundred fifty-six billion, five hundred sixty-five million, six hundred fifty-seven thousand, five hundred fifty-two".