25641429552 has 40 divisors (see below), whose sum is σ = 73600400880. Its totient is φ = 8547143040.

The previous prime is 25641429523. The next prime is 25641429571. The reversal of 25641429552 is 25592414652.

25641429552 is a `hidden beast` number, since 2 + 5 + 64 + 14 + 29 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 25641429498 and 25641429507.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29677149 + ... + 29678012.

It is an arithmetic number, because the mean of its divisors is an integer number (1840010022).

Almost surely, 2^25641429552 is an apocalyptic number.

It is an amenable number.

25641429552 is an abundant number, since it is smaller than the sum of its proper divisors (47958971328).

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

25641429552 is a wasteful number, since it uses less digits than its factorization.

25641429552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59355178 (or 59355166 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 25641429552 in words is "twenty-five billion, six hundred forty-one million, four hundred twenty-nine thousand, five hundred fifty-two".