20325243025 has 12 divisors (see below), whose sum is σ = 25248084912. Its totient is φ = 16231301840.

The previous prime is 20325243017. The next prime is 20325243047. The reversal of 20325243025 is 52034252302.

It is a happy number.

It is not a de Polignac number, because 20325243025 - 2³ = 20325243017 is a prime.

It is a super-2 number, since 2×20325243025² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20325242984 and 20325243002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 707959 + ... + 736108.

It is an arithmetic number, because the mean of its divisors is an integer number (2104007076).

Almost surely, 2^20325243025 is an apocalyptic number.

20325243025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20325243025 is a deficient number, since it is larger than the sum of its proper divisors (4922841887).

20325243025 is a wasteful number, since it uses less digits than its factorization.

20325243025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444640 (or 1444635 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 20325243025 its reverse (52034252302), we get a palindrome (72359495327).

The spelling of 20325243025 in words is "twenty billion, three hundred twenty-five million, two hundred forty-three thousand, twenty-five".