1255453235399 has 8 divisors (see below), whose sum is σ = 1381705573392. Its totient is φ = 1131220935040.

The previous prime is 1255453235383. The next prime is 1255453235401. The reversal of 1255453235399 is 9935323545521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1255453235399 - 2⁴ = 1255453235383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255453235599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 505008104 + ... + 505010589.

It is an arithmetic number, because the mean of its divisors is an integer number (172713196674).

Almost surely, 2^{1255453235399} is an apocalyptic number.

1255453235399 is a deficient number, since it is larger than the sum of its proper divisors (126252337993).

1255453235399 is a wasteful number, since it uses less digits than its factorization.

1255453235399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010018817.

The product of its digits is 21870000, while the sum is 56.

The spelling of 1255453235399 in words is "one trillion, two hundred fifty-five billion, four hundred fifty-three million, two hundred thirty-five thousand, three hundred ninety-nine".