25323154424240 has 160 divisors (see below), whose sum is σ = 60009024890880. Its totient is φ = 9935742643200.

The previous prime is 25323154424209. The next prime is 25323154424251. The reversal of 25323154424240 is 4242445132352.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1731964130 + ... + 1731978750.

It is an arithmetic number, because the mean of its divisors is an integer number (375056405568).

Almost surely, 2^{25323154424240} is an apocalyptic number.

25323154424240 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 25323154424240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30004512445440).

25323154424240 is an abundant number, since it is smaller than the sum of its proper divisors (34685870466640).

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

25323154424240 is a wasteful number, since it uses less digits than its factorization.

25323154424240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16051 (or 16045 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 41.

Adding to 25323154424240 its reverse (4242445132352), we get a palindrome (29565599556592).

The spelling of 25323154424240 in words is "twenty-five trillion, three hundred twenty-three billion, one hundred fifty-four million, four hundred twenty-four thousand, two hundred forty".