25272025 has 6 divisors (see below), whose sum is σ = 31337342. Its totient is φ = 20217600.

The previous prime is 25272019. The next prime is 25272053. The reversal of 25272025 is 52027252.

It can be written as a sum of positive squares in 3 ways, for example, as 1296 + 25270729 = 36^2 + 5027^2 .

It is not a de Polignac number, because 25272025 - 2³ = 25272017 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: 1010881 = 25272025 / (2 + 5 + 2 + 7 + 2 + 0 + 2 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505416 + ... + 505465.

Almost surely, 2^25272025 is an apocalyptic number.

25272025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25272025 is a deficient number, since it is larger than the sum of its proper divisors (6065317).

25272025 is a wasteful number, since it uses less digits than its factorization.

25272025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010891 (or 1010886 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 25272025 is about 5027.1289022662. The cubic root of 25272025 is about 293.4584915571.

Adding to 25272025 its reverse (52027252), we get a palindrome (77299277).

The spelling of 25272025 in words is "twenty-five million, two hundred seventy-two thousand, twenty-five".