25321012044 has 12 divisors (see below), whose sum is σ = 59082361464. Its totient is φ = 8440337344.

The previous prime is 25321012037. The next prime is 25321012061. The reversal of 25321012044 is 44021012352.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055042157 + ... + 1055042180.

It is an arithmetic number, because the mean of its divisors is an integer number (4923530122).

Almost surely, 2^25321012044 is an apocalyptic number.

It is an amenable number.

25321012044 is an abundant number, since it is smaller than the sum of its proper divisors (33761349420).

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

25321012044 is a wasteful number, since it uses less digits than its factorization.

25321012044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110084344 (or 2110084342 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 25321012044 its reverse (44021012352), we get a palindrome (69342024396).

The spelling of 25321012044 in words is "twenty-five billion, three hundred twenty-one million, twelve thousand, forty-four".