25212532350000 has 240 divisors, whose sum is σ = 82391145629184. Its totient is φ = 6642334560000.

The previous prime is 25212532349969. The next prime is 25212532350001. The reversal of 25212532350000 is 5323521252.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 25212532350000.

It is not an unprimeable number, because it can be changed into a prime (25212532350001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11437449 + ... + 13462551.

Almost surely, 2^{25212532350000} is an apocalyptic number.

25212532350000 is a gapful number since it is divisible by the number (20) 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 25212532350000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41195572814592).

25212532350000 is an abundant number, since it is smaller than the sum of its proper divisors (57178613279184).

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

25212532350000 is an equidigital number, since it uses as much as digits as its factorization.

25212532350000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025222 (or 2025196 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 25212532350000 its reverse (5323521252), we get a palindrome (25217855871252).

The spelling of 25212532350000 in words is "twenty-five trillion, two hundred twelve billion, five hundred thirty-two million, three hundred fifty thousand".