25122030024 has 256 divisors, whose sum is σ = 83075328000. Its totient is φ = 6142169088.

The previous prime is 25122029987. The next prime is 25122030029. The reversal of 25122030024 is 42003022152.

It is a super-2 number, since 2×25122030024² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (25122030029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2482527 + ... + 2492625.

It is an arithmetic number, because the mean of its divisors is an integer number (324513000).

Almost surely, 2^25122030024 is an apocalyptic number.

25122030024 is a gapful number since it is divisible by the number (24) 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 25122030024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41537664000).

25122030024 is an abundant number, since it is smaller than the sum of its proper divisors (57953297976).

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

25122030024 is a wasteful number, since it uses less digits than its factorization.

25122030024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212 (or 10208 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 25122030024 its reverse (42003022152), we get a palindrome (67125052176).

The spelling of 25122030024 in words is "twenty-five billion, one hundred twenty-two million, thirty thousand, twenty-four".