1252513400424 has 192 divisors, whose sum is σ = 3826476417600. Its totient is φ = 338271897600.

The previous prime is 1252513400393. The next prime is 1252513400431. The reversal of 1252513400424 is 4240043152521.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 809844 + ... + 1777884.

It is an arithmetic number, because the mean of its divisors is an integer number (19929564675).

Almost surely, 2^{1252513400424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252513400424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1913238208800).

1252513400424 is an abundant number, since it is smaller than the sum of its proper divisors (2573963017176).

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

1252513400424 is a wasteful number, since it uses less digits than its factorization.

1252513400424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968116 (or 968099 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 1252513400424 its reverse (4240043152521), we get a palindrome (5492556552945).

The spelling of 1252513400424 in words is "one trillion, two hundred fifty-two billion, five hundred thirteen million, four hundred thousand, four hundred twenty-four".