25030001320 has 32 divisors (see below), whose sum is σ = 56676227400. Its totient is φ = 9948227328.

The previous prime is 25030001219. The next prime is 25030001341. The reversal of 25030001320 is 2310003052.

It can be written as a sum of positive squares in 4 ways, for example, as 18052072164 + 6977929156 = 134358^2 + 83534^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25030001294 and 25030001303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1986555 + ... + 1999114.

Almost surely, 2^25030001320 is an apocalyptic number.

25030001320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25030001320 is an abundant number, since it is smaller than the sum of its proper divisors (31646226080).

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

25030001320 is a wasteful number, since it uses less digits than its factorization.

25030001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985837 (or 3985833 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 25030001320 its reverse (2310003052), we get a palindrome (27340004372).

The spelling of 25030001320 in words is "twenty-five billion, thirty million, one thousand, three hundred twenty".