1255252225000 has 96 divisors (see below), whose sum is σ = 2963290259160. Its totient is φ = 498434560000.

The previous prime is 1255252224977. The next prime is 1255252225037. The reversal of 1255252225000 is 5222525521.

It can be written as a sum of positive squares in 12 ways, for example, as 171483779236 + 1083768445764 = 414106^2 + 1041042^2 .

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, 3241752 + ... + 3608248.

Almost surely, 2^{1255252225000} is an apocalyptic number.

1255252225000 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 1255252225000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1481645129580).

1255252225000 is an abundant number, since it is smaller than the sum of its proper divisors (1708038034160).

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

1255252225000 is an equidigital number, since it uses as much as digits as its factorization.

1255252225000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366665 (or 366641 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 1255252225000 in words is "one trillion, two hundred fifty-five billion, two hundred fifty-two million, two hundred twenty-five thousand".