1255183544025 has 36 divisors (see below), whose sum is σ = 2248235669680. Its totient is φ = 669412620000.

The previous prime is 1255183544003. The next prime is 1255183544059. The reversal of 1255183544025 is 5204453815521.

1255183544025 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 1 + 83 + 544 + 0 + 25 = 666.

It is not a de Polignac number, because 1255183544025 - 2¹⁸ = 1255183281881 is a prime.

It is a super-2 number, since 2×1255183544025² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12726150 + ... + 12824400.

Almost surely, 2^{1255183544025} is an apocalyptic number.

1255183544025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255183544025 is a deficient number, since it is larger than the sum of its proper divisors (993052125655).

1255183544025 is a wasteful number, since it uses less digits than its factorization.

1255183544025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155046 (or 155038 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

The spelling of 1255183544025 in words is "one trillion, two hundred fifty-five billion, one hundred eighty-three million, five hundred forty-four thousand, twenty-five".