1255432312545 has 32 divisors (see below), whose sum is σ = 2028265747200. Its totient is φ = 663049734144.

The previous prime is 1255432312507. The next prime is 1255432312573. The reversal of 1255432312545 is 5452132345521.

It is not a de Polignac number, because 1255432312545 - 2⁸ = 1255432312289 is a prime.

It is a super-2 number, since 2×1255432312545² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1255432312497 and 1255432312506.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1585636 + ... + 2241674.

It is an arithmetic number, because the mean of its divisors is an integer number (63383304600).

Almost surely, 2^{1255432312545} is an apocalyptic number.

1255432312545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1255432312545 is a deficient number, since it is larger than the sum of its proper divisors (772833434655).

1255432312545 is a wasteful number, since it uses less digits than its factorization.

1255432312545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657289.

The product of its digits is 720000, while the sum is 42.

The spelling of 1255432312545 in words is "one trillion, two hundred fifty-five billion, four hundred thirty-two million, three hundred twelve thousand, five hundred forty-five".