25349260928 has 32 divisors (see below), whose sum is σ = 51674921760. Its totient is φ = 12379868928.

The previous prime is 25349260927. The next prime is 25349261053. The reversal of 25349260928 is 82906294352.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (25349260927) 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, 2297300 + ... + 2308307.

It is an arithmetic number, because the mean of its divisors is an integer number (1614841305).

Almost surely, 2^25349260928 is an apocalyptic number.

It is an amenable number.

25349260928 is an abundant number, since it is smaller than the sum of its proper divisors (26325660832).

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

25349260928 is an equidigital number, since it uses as much as digits as its factorization.

25349260928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4605664 (or 4605652 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 25349260928 in words is "twenty-five billion, three hundred forty-nine million, two hundred sixty thousand, nine hundred twenty-eight".