1255504307904 has 840 divisors, whose sum is σ = 4737068054928. Its totient is φ = 325128867840.

The previous prime is 1255504307879. The next prime is 1255504307933. The reversal of 1255504307904 is 4097034055521.

1255504307904 is a `hidden beast` number, since 1 + 2 + 5 + 550 + 4 + 3 + 0 + 7 + 90 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1255504307904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1712829522 + ... + 1712830254.

Almost surely, 2^{1255504307904} is an apocalyptic number.

1255504307904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1255504307904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2368534027464).

1255504307904 is an abundant number, since it is smaller than the sum of its proper divisors (3481563747024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255504307904 is a wasteful number, since it uses less digits than its factorization.

1255504307904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395 (or 1369 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 1255504307904 in words is "one trillion, two hundred fifty-five billion, five hundred four million, three hundred seven thousand, nine hundred four".