25020230720 has 28 divisors (see below), whose sum is σ = 59579425164. Its totient is φ = 10008092160.

The previous prime is 25020230707. The next prime is 25020230749. The reversal of 25020230720 is 2703202052.

It can be written as a sum of positive squares in 2 ways, for example, as 9507030016 + 15513200704 = 97504^2 + 124552^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39093791 + ... + 39094430.

It is an arithmetic number, because the mean of its divisors is an integer number (2127836613).

Almost surely, 2^25020230720 is an apocalyptic number.

25020230720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25020230720 is an abundant number, since it is smaller than the sum of its proper divisors (34559194444).

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

25020230720 is an equidigital number, since it uses as much as digits as its factorization.

25020230720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78188238 (or 78188228 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

Adding to 25020230720 its reverse (2703202052), we get a palindrome (27723432772).

The spelling of 25020230720 in words is "twenty-five billion, twenty million, two hundred thirty thousand, seven hundred twenty".