25220234320 has 40 divisors (see below), whose sum is σ = 58644699624. Its totient is φ = 10086776832.

The previous prime is 25220234309. The next prime is 25220234329. The reversal of 25220234320 is 2343202252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12703994944 + 12516239376 = 112712^2 + 111876^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25220234329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 798672 + ... + 829648.

Almost surely, 2^25220234320 is an apocalyptic number.

25220234320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25220234320 is an abundant number, since it is smaller than the sum of its proper divisors (33424465304).

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

25220234320 is a wasteful number, since it uses less digits than its factorization.

25220234320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41167 (or 41161 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 25220234320 its reverse (2343202252), we get a palindrome (27563436572).

The spelling of 25220234320 in words is "twenty-five billion, two hundred twenty million, two hundred thirty-four thousand, three hundred twenty".