25523242000 has 160 divisors (see below), whose sum is σ = 62785981440. Its totient is φ = 10033689600.

The previous prime is 25523241871. The next prime is 25523242021. The reversal of 25523242000 is 24232552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 39693679 + ... + 39694321.

It is an arithmetic number, because the mean of its divisors is an integer number (392412384).

Almost surely, 2^25523242000 is an apocalyptic number.

25523242000 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 25523242000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31392990720).

25523242000 is an abundant number, since it is smaller than the sum of its proper divisors (37262739440).

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

25523242000 is a wasteful number, since it uses less digits than its factorization.

25523242000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 25523242000 its reverse (24232552), we get a palindrome (25547474552).

The spelling of 25523242000 in words is "twenty-five billion, five hundred twenty-three million, two hundred forty-two thousand".