25305203022 has 64 divisors (see below), whose sum is σ = 56886430464. Its totient is φ = 7436931840.

The previous prime is 25305202981. The next prime is 25305203051. The reversal of 25305203022 is 22030250352.

It is a junction number, because it is equal to n+sod(n) for n = 25305202983 and 25305203001.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 747793 + ... + 780899.

It is an arithmetic number, because the mean of its divisors is an integer number (888850476).

Almost surely, 2^25305203022 is an apocalyptic number.

25305203022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 25305203022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28443215232).

25305203022 is an abundant number, since it is smaller than the sum of its proper divisors (31581227442).

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

25305203022 is a wasteful number, since it uses less digits than its factorization.

25305203022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33473.

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 25305203022 its reverse (22030250352), we get a palindrome (47335453374).

The spelling of 25305203022 in words is "twenty-five billion, three hundred five million, two hundred three thousand, twenty-two".