25532142012520 has 384 divisors, whose sum is σ = 68666052470400. Its totient is φ = 8486895605760.

The previous prime is 25532142012431. The next prime is 25532142012577. The reversal of 25532142012520 is 2521024123552.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3032676871 + ... + 3032685289.

It is an arithmetic number, because the mean of its divisors is an integer number (178817844975).

Almost surely, 2^{25532142012520} is an apocalyptic number.

25532142012520 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 25532142012520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34333026235200).

25532142012520 is an abundant number, since it is smaller than the sum of its proper divisors (43133910457880).

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

25532142012520 is a wasteful number, since it uses less digits than its factorization.

25532142012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8929 (or 8914 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 25532142012520 in words is "twenty-five trillion, five hundred thirty-two billion, one hundred forty-two million, twelve thousand, five hundred twenty".