25354504452 has 12 divisors (see below), whose sum is σ = 59160510416. Its totient is φ = 8451501480.

The previous prime is 25354504423. The next prime is 25354504459. The reversal of 25354504452 is 25440545352.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 25354504452.

It is not an unprimeable number, because it can be changed into a prime (25354504459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056437674 + ... + 1056437697.

Almost surely, 2^25354504452 is an apocalyptic number.

It is an amenable number.

25354504452 is an abundant number, since it is smaller than the sum of its proper divisors (33806005964).

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

25354504452 is a wasteful number, since it uses less digits than its factorization.

25354504452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112875378 (or 2112875376 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 39.

The spelling of 25354504452 in words is "twenty-five billion, three hundred fifty-four million, five hundred four thousand, four hundred fifty-two".