1255453235400 has 288 divisors, whose sum is σ = 4875574818240. Its totient is φ = 264886755840.

The previous prime is 1255453235383. The next prime is 1255453235401. The reversal of 1255453235400 is 45323545521.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1255453235401) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1260204 + ... + 2024603.

It is an arithmetic number, because the mean of its divisors is an integer number (16929079230).

Almost surely, 2^{1255453235400} is an apocalyptic number.

1255453235400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1255453235400 is an abundant number, since it is smaller than the sum of its proper divisors (3620121582840).

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

1255453235400 is a wasteful number, since it uses less digits than its factorization.

1255453235400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284853 (or 3284837 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 1255453235400 in words is "one trillion, two hundred fifty-five billion, four hundred fifty-three million, two hundred thirty-five thousand, four hundred".