25202155552 has 24 divisors (see below), whose sum is σ = 56704850496. Its totient is φ = 10800923712.

The previous prime is 25202155523. The next prime is 25202155553. The reversal of 25202155552 is 25555120252.

It is not an unprimeable number, because it can be changed into a prime (25202155553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56254588 + ... + 56255035.

It is an arithmetic number, because the mean of its divisors is an integer number (2362702104).

Almost surely, 2^25202155552 is an apocalyptic number.

It is an amenable number.

25202155552 is an abundant number, since it is smaller than the sum of its proper divisors (31502694944).

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

25202155552 is a wasteful number, since it uses less digits than its factorization.

25202155552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112509640 (or 112509632 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

The spelling of 25202155552 in words is "twenty-five billion, two hundred two million, one hundred fifty-five thousand, five hundred fifty-two".