256527505516675 has 12 divisors (see below), whose sum is σ = 326691244864576. Its totient is φ = 199675463752800.

The previous prime is 256527505516637. The next prime is 256527505516727. The reversal of 256527505516675 is 576615505725652.

It is a happy number.

It is not a de Polignac number, because 256527505516675 - 2⁷ = 256527505516547 is a prime.

It is a super-2 number, since 2×256527505516675² (a number of 30 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (67) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 256527505516675.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138663515571 + ... + 138663517420.

Almost surely, 2^{256527505516675} is an apocalyptic number.

256527505516675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

256527505516675 is a deficient number, since it is larger than the sum of its proper divisors (70163739347901).

256527505516675 is a wasteful number, since it uses less digits than its factorization.

256527505516675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277327033038 (or 277327033033 counting only the distinct ones).

The product of its (nonzero) digits is 661500000, while the sum is 67.

The spelling of 256527505516675 in words is "two hundred fifty-six trillion, five hundred twenty-seven billion, five hundred five million, five hundred sixteen thousand, six hundred seventy-five".