25543310052 has 48 divisors (see below), whose sum is σ = 64357979840. Its totient is φ = 7838391168.

The previous prime is 25543309991. The next prime is 25543310053. The reversal of 25543310052 is 25001334552.

It is not an unprimeable number, because it can be changed into a prime (25543310053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161302 + ... + 277677.

Almost surely, 2^25543310052 is an apocalyptic number.

It is an amenable number.

25543310052 is an abundant number, since it is smaller than the sum of its proper divisors (38814669788).

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

25543310052 is a wasteful number, since it uses less digits than its factorization.

25543310052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439372 (or 439370 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 25543310052 in words is "twenty-five billion, five hundred forty-three million, three hundred ten thousand, fifty-two".