25230302120 has 32 divisors (see below), whose sum is σ = 56867999400. Its totient is φ = 10074375168.

The previous prime is 25230302063. The next prime is 25230302129. The reversal of 25230302120 is 2120303252.

It can be written as a sum of positive squares in 4 ways, for example, as 14695743076 + 10534559044 = 121226^2 + 102638^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 25230302092 and 25230302101.

It is not an unprimeable number, because it can be changed into a prime (25230302129) 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, 531509 + ... + 577028.

Almost surely, 2^25230302120 is an apocalyptic number.

25230302120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25230302120 is an abundant number, since it is smaller than the sum of its proper divisors (31637697280).

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

25230302120 is a wasteful number, since it uses less digits than its factorization.

25230302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109117 (or 1109113 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 25230302120 its reverse (2120303252), we get a palindrome (27350605372).

The spelling of 25230302120 in words is "twenty-five billion, two hundred thirty million, three hundred two thousand, one hundred twenty".