1252455214400 has 336 divisors, whose sum is σ = 3352982270400. Its totient is φ = 460444907520.

The previous prime is 1252455214391. The next prime is 1252455214459. The reversal of 1252455214400 is 44125542521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 994800971 + ... + 994802229.

It is an arithmetic number, because the mean of its divisors is an integer number (9979113900).

Almost surely, 2^{1252455214400} is an apocalyptic number.

1252455214400 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 1252455214400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676491135200).

1252455214400 is an abundant number, since it is smaller than the sum of its proper divisors (2100527056000).

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

1252455214400 is a wasteful number, since it uses less digits than its factorization.

1252455214400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 1252455214400 in words is "one trillion, two hundred fifty-two billion, four hundred fifty-five million, two hundred fourteen thousand, four hundred".