25020252425 has 48 divisors (see below), whose sum is σ = 37302076800. Its totient is φ = 16284172800.

The previous prime is 25020252377. The next prime is 25020252451. The reversal of 25020252425 is 52425202052.

It is a de Polignac number, because none of the positive numbers 2^k-25020252425 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 257645 + ... + 341205.

It is an arithmetic number, because the mean of its divisors is an integer number (777126600).

Almost surely, 2^25020252425 is an apocalyptic number.

25020252425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25020252425 is a deficient number, since it is larger than the sum of its proper divisors (12281824375).

25020252425 is a wasteful number, since it uses less digits than its factorization.

25020252425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83666 (or 83661 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 29.

Adding to 25020252425 its reverse (52425202052), we get a palindrome (77445454477).

The spelling of 25020252425 in words is "twenty-five billion, twenty million, two hundred fifty-two thousand, four hundred twenty-five".