245320130025 has 18 divisors (see below), whose sum is σ = 439395611070. Its totient is φ = 130837402560.

The previous prime is 245320130021. The next prime is 245320130039. The reversal of 245320130025 is 520031023542.

It is a happy number.

245320130025 is a `hidden beast` number, since 2 + 453 + 201 + 3 + 0 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 520798041 + 244799331984 = 22821^2 + 494772^2 .

It is not a de Polignac number, because 245320130025 - 2² = 245320130021 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245320130021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 545155620 + ... + 545156069.

Almost surely, 2^245320130025 is an apocalyptic number.

245320130025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

245320130025 is a deficient number, since it is larger than the sum of its proper divisors (194075481045).

245320130025 is a wasteful number, since it uses less digits than its factorization.

245320130025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090311705 (or 1090311697 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 245320130025 its reverse (520031023542), we get a palindrome (765351153567).

The spelling of 245320130025 in words is "two hundred forty-five billion, three hundred twenty million, one hundred thirty thousand, twenty-five".