25348089450 has 96 divisors (see below), whose sum is σ = 66097733760. Its totient is φ = 6419347200.

The previous prime is 25348089427. The next prime is 25348089457. The reversal of 25348089450 is 5498084352.

It is a self number, because there is not a number n which added to its sum of digits gives 25348089450.

It is not an unprimeable number, because it can be changed into a prime (25348089457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 217587 + ... + 313113.

It is an arithmetic number, because the mean of its divisors is an integer number (688518060).

Almost surely, 2^25348089450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25348089450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33048866880).

25348089450 is an abundant number, since it is smaller than the sum of its proper divisors (40749644310).

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

25348089450 is a wasteful number, since it uses less digits than its factorization.

25348089450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95632 (or 95627 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 25348089450 in words is "twenty-five billion, three hundred forty-eight million, eighty-nine thousand, four hundred fifty".