25122030025 has 24 divisors (see below), whose sum is σ = 32554523520. Its totient is φ = 19194954240.

The previous prime is 25122029987. The next prime is 25122030029. The reversal of 25122030025 is 52003022152.

It is not a de Polignac number, because 25122030025 - 2¹¹ = 25122027977 is a prime.

It is a super-2 number, since 2×25122030025² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25122029978 and 25122030005.

It is not an unprimeable number, because it can be changed into a prime (25122030029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354516 + ... + 419434.

It is an arithmetic number, because the mean of its divisors is an integer number (1356438480).

Almost surely, 2^25122030025 is an apocalyptic number.

25122030025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25122030025 is a deficient number, since it is larger than the sum of its proper divisors (7432493495).

25122030025 is a wasteful number, since it uses less digits than its factorization.

25122030025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65625 (or 65620 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 25122030025 its reverse (52003022152), we get a palindrome (77125052177).

The spelling of 25122030025 in words is "twenty-five billion, one hundred twenty-two million, thirty thousand, twenty-five".