25125230405 has 16 divisors (see below), whose sum is σ = 32915127168. Its totient is φ = 18259608000.

The previous prime is 25125230399. The next prime is 25125230407. The reversal of 25125230405 is 50403252152.

It is not a de Polignac number, because 25125230405 - 2¹² = 25125226309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25125230407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89441 + ... + 241350.

It is an arithmetic number, because the mean of its divisors is an integer number (2057195448).

Almost surely, 2^25125230405 is an apocalyptic number.

It is an amenable number.

25125230405 is a deficient number, since it is larger than the sum of its proper divisors (7789896763).

25125230405 is a wasteful number, since it uses less digits than its factorization.

25125230405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332188.

The product of its (nonzero) digits is 12000, while the sum is 29.

Adding to 25125230405 its reverse (50403252152), we get a palindrome (75528482557).

The spelling of 25125230405 in words is "twenty-five billion, one hundred twenty-five million, two hundred thirty thousand, four hundred five".