25320034446 has 64 divisors (see below), whose sum is σ = 58700928000. Its totient is φ = 7131649536.

The previous prime is 25320034427. The next prime is 25320034459. The reversal of 25320034446 is 64443002352.

25320034446 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×25320034446² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 897126 + ... + 924918.

It is an arithmetic number, because the mean of its divisors is an integer number (917202000).

Almost surely, 2^25320034446 is an apocalyptic number.

25320034446 is an abundant number, since it is smaller than the sum of its proper divisors (33380893554).

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

25320034446 is a wasteful number, since it uses less digits than its factorization.

25320034446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28113.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 25320034446 its reverse (64443002352), we get a palindrome (89763036798).

The spelling of 25320034446 in words is "twenty-five billion, three hundred twenty million, thirty-four thousand, four hundred forty-six".