1255435432245 has 48 divisors (see below), whose sum is σ = 2183827230000. Its totient is φ = 667188264960.

The previous prime is 1255435432219. The next prime is 1255435432253. The reversal of 1255435432245 is 5422345345521.

1255435432245 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 43 + 543 + 22 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 44832557169 + 1210602875076 = 211737^2 + 1100274^2 .

It is not a de Polignac number, because 1255435432245 - 2⁵ = 1255435432213 is a prime.

It is a super-2 number, since 2×1255435432245² (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 a self number, because there is not a number n which added to its sum of digits gives 1255435432245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15335181 + ... + 15416829.

It is an arithmetic number, because the mean of its divisors is an integer number (45496400625).

Almost surely, 2^{1255435432245} is an apocalyptic number.

1255435432245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255435432245 is a deficient number, since it is larger than the sum of its proper divisors (928391797755).

1255435432245 is a wasteful number, since it uses less digits than its factorization.

1255435432245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82870 (or 82867 counting only the distinct ones).

The product of its digits is 2880000, while the sum is 45.

The spelling of 1255435432245 in words is "one trillion, two hundred fifty-five billion, four hundred thirty-five million, four hundred thirty-two thousand, two hundred forty-five".