25023001654920 has 128 divisors (see below), whose sum is σ = 75853329776640. Its totient is φ = 6603177557760.

The previous prime is 25023001654879. The next prime is 25023001654949. The reversal of 25023001654920 is 2945610032052.

It is a super-2 number, since 2×25023001654920² (a number of 28 digits) contains 22 as substring.

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, 16155625 + ... + 17636615.

It is an arithmetic number, because the mean of its divisors is an integer number (592604138880).

Almost surely, 2^{25023001654920} is an apocalyptic number.

25023001654920 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 25023001654920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37926664888320).

25023001654920 is an abundant number, since it is smaller than the sum of its proper divisors (50830328121720).

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

25023001654920 is a wasteful number, since it uses less digits than its factorization.

25023001654920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482475 (or 1482471 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

Adding to 25023001654920 its reverse (2945610032052), we get a palindrome (27968611686972).

The spelling of 25023001654920 in words is "twenty-five trillion, twenty-three billion, one million, six hundred fifty-four thousand, nine hundred twenty".