25331331552 has 24 divisors (see below), whose sum is σ = 66494745576. Its totient is φ = 8443777152.

The previous prime is 25331331551. The next prime is 25331331607. The reversal of 25331331552 is 25513313352.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25331331551) 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, 131933923 + ... + 131934114.

It is an arithmetic number, because the mean of its divisors is an integer number (2770614399).

Almost surely, 2^25331331552 is an apocalyptic number.

It is an amenable number.

25331331552 is an abundant number, since it is smaller than the sum of its proper divisors (41163414024).

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

25331331552 is a wasteful number, since it uses less digits than its factorization.

25331331552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263868050 (or 263868042 counting only the distinct ones).

The product of its digits is 40500, while the sum is 33.

The spelling of 25331331552 in words is "twenty-five billion, three hundred thirty-one million, three hundred thirty-one thousand, five hundred fifty-two".