1255540434300 has 108 divisors (see below), whose sum is σ = 3939660553920. Its totient is φ = 334450160640.

The previous prime is 1255540434227. The next prime is 1255540434301. The reversal of 1255540434300 is 34340455521.

1255540434300 is a `hidden beast` number, since 1 + 2 + 55 + 540 + 4 + 34 + 30 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255540434301) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 85269 + ... + 1586931.

Almost surely, 2^{1255540434300} is an apocalyptic number.

1255540434300 is a gapful number since it is divisible by the number (10) 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 1255540434300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1969830276960).

1255540434300 is an abundant number, since it is smaller than the sum of its proper divisors (2684120119620).

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

1255540434300 is a wasteful number, since it uses less digits than its factorization.

1255540434300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502612 (or 1502602 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 1255540434300 its reverse (34340455521), we get a palindrome (1289880889821).

The spelling of 1255540434300 in words is "one trillion, two hundred fifty-five billion, five hundred forty million, four hundred thirty-four thousand, three hundred".