25051032025 has 6 divisors (see below), whose sum is σ = 31063279742. Its totient is φ = 20040825600.

The previous prime is 25051032001. The next prime is 25051032073. The reversal of 25051032025 is 52023015052.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6061089609 + 18989942416 = 77853^2 + 137804^2 .

It is not a de Polignac number, because 25051032025 - 2¹⁵ = 25050999257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 1002041281 = 25051032025 / (2 + 5 + 0 + 5 + 1 + 0 + 3 + 2 + 0 + 2 + 5).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 501020616 + ... + 501020665.

Almost surely, 2^25051032025 is an apocalyptic number.

25051032025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25051032025 is a deficient number, since it is larger than the sum of its proper divisors (6012247717).

25051032025 is a wasteful number, since it uses less digits than its factorization.

25051032025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002041291 (or 1002041286 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 25051032025 its reverse (52023015052), we get a palindrome (77074047077).

The spelling of 25051032025 in words is "twenty-five billion, fifty-one million, thirty-two thousand, twenty-five".