1255432210515 has 48 divisors (see below), whose sum is σ = 2488299061248. Its totient is φ = 573600875328.

The previous prime is 1255432210511. The next prime is 1255432210553. The reversal of 1255432210515 is 5150122345521.

1255432210515 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 432 + 210 + 5 + 1 + 5 = 666.

It is not a de Polignac number, because 1255432210515 - 2² = 1255432210511 is a prime.

It is a super-2 number, since 2×1255432210515² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1255432210515.

It is not an unprimeable number, because it can be changed into a prime (1255432210511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 497107 + ... + 1660716.

It is an arithmetic number, because the mean of its divisors is an integer number (51839563776).

Almost surely, 2^{1255432210515} is an apocalyptic number.

1255432210515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1255432210515 is a deficient number, since it is larger than the sum of its proper divisors (1232866850733).

1255432210515 is a wasteful number, since it uses less digits than its factorization.

1255432210515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159688 (or 2159685 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 1255432210515 in words is "one trillion, two hundred fifty-five billion, four hundred thirty-two million, two hundred ten thousand, five hundred fifteen".