1252523452544 has 192 divisors, whose sum is σ = 3250497240000. Its totient is φ = 469423558656.

The previous prime is 1252523452529. The next prime is 1252523452547. The reversal of 1252523452544 is 4452543252521.

It is a junction number, because it is equal to n+sod(n) for n = 1252523452495 and 1252523452504.

It is not an unprimeable number, because it can be changed into a prime (1252523452547) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2659382 + ... + 3094730.

It is an arithmetic number, because the mean of its divisors is an integer number (16929673125).

Almost surely, 2^{1252523452544} is an apocalyptic number.

1252523452544 is a gapful number since it is divisible by the number (14) 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 1252523452544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1625248620000).

1252523452544 is an abundant number, since it is smaller than the sum of its proper divisors (1997973787456).

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

1252523452544 is a wasteful number, since it uses less digits than its factorization.

1252523452544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435415 (or 435390 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 44.

The spelling of 1252523452544 in words is "one trillion, two hundred fifty-two billion, five hundred twenty-three million, four hundred fifty-two thousand, five hundred forty-four".