1255061053440 has 448 divisors, whose sum is σ = 4616152718400. Its totient is φ = 323133898752.

The previous prime is 1255061053439. The next prime is 1255061053451. The reversal of 1255061053440 is 443501605521.

1255061053440 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 0 + 610 + 5 + 34 + 4 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 1255061053395 and 1255061053404.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 32052114 + ... + 32091246.

Almost surely, 2^{1255061053440} is an apocalyptic number.

1255061053440 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 1255061053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2308076359200).

1255061053440 is an abundant number, since it is smaller than the sum of its proper divisors (3361091664960).

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

1255061053440 is an equidigital number, since it uses as much as digits as its factorization.

1255061053440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39202 (or 39172 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 1255061053440 its reverse (443501605521), we get a palindrome (1698562658961).

The spelling of 1255061053440 in words is "one trillion, two hundred fifty-five billion, sixty-one million, fifty-three thousand, four hundred forty".