25201323528 has 32 divisors (see below), whose sum is σ = 63012991200. Its totient is φ = 8399150208.

The previous prime is 25201323517. The next prime is 25201323529. The reversal of 25201323528 is 82532310252.

It is not an unprimeable number, because it can be changed into a prime (25201323529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85743 + ... + 240321.

It is an arithmetic number, because the mean of its divisors is an integer number (1969155975).

Almost surely, 2^25201323528 is an apocalyptic number.

It is an amenable number.

25201323528 is an abundant number, since it is smaller than the sum of its proper divisors (37811667672).

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

25201323528 is a wasteful number, since it uses less digits than its factorization.

25201323528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161381 (or 161377 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 25201323528 in words is "twenty-five billion, two hundred one million, three hundred twenty-three thousand, five hundred twenty-eight".