2255431121400 has 96 divisors (see below), whose sum is σ = 7140599043840. Its totient is φ = 588651519360.

The previous prime is 2255431121371. The next prime is 2255431121443. The reversal of 2255431121400 is 41211345522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39961714 + ... + 40018113.

It is an arithmetic number, because the mean of its divisors is an integer number (74381240040).

Almost surely, 2^{2255431121400} is an apocalyptic number.

2255431121400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2255431121400 is an abundant number, since it is smaller than the sum of its proper divisors (4885167922440).

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

2255431121400 is a wasteful number, since it uses less digits than its factorization.

2255431121400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79979893 (or 79979884 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 2255431121400 its reverse (41211345522), we get a palindrome (2296642466922).

The spelling of 2255431121400 in words is "two trillion, two hundred fifty-five billion, four hundred thirty-one million, one hundred twenty-one thousand, four hundred".