25203461320 has 16 divisors (see below), whose sum is σ = 56707788060. Its totient is φ = 10081384512.

The previous prime is 25203461287. The next prime is 25203461323. The reversal of 25203461320 is 2316430252.

It can be written as a sum of positive squares in 2 ways, for example, as 25073455716 + 130005604 = 158346^2 + 11402^2 .

It is a super-2 number, since 2×25203461320² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25203461323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315043227 + ... + 315043306.

Almost surely, 2^25203461320 is an apocalyptic number.

25203461320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25203461320 is an abundant number, since it is smaller than the sum of its proper divisors (31504326740).

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

25203461320 is a wasteful number, since it uses less digits than its factorization.

25203461320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630086544 (or 630086540 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 25203461320 its reverse (2316430252), we get a palindrome (27519891572).

The spelling of 25203461320 in words is "twenty-five billion, two hundred three million, four hundred sixty-one thousand, three hundred twenty".