25321655652 has 24 divisors (see below), whose sum is σ = 62559385056. Its totient is φ = 7944048768.

The previous prime is 25321655633. The next prime is 25321655707. The reversal of 25321655652 is 25655612352.

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, 62062678 + ... + 62063085.

It is an arithmetic number, because the mean of its divisors is an integer number (2606641044).

Almost surely, 2^25321655652 is an apocalyptic number.

It is an amenable number.

25321655652 is an abundant number, since it is smaller than the sum of its proper divisors (37237729404).

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

25321655652 is a wasteful number, since it uses less digits than its factorization.

25321655652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124125787 (or 124125785 counting only the distinct ones).

The product of its digits is 540000, while the sum is 42.

The spelling of 25321655652 in words is "twenty-five billion, three hundred twenty-one million, six hundred fifty-five thousand, six hundred fifty-two".