25275025 has 6 divisors (see below), whose sum is σ = 31341062. Its totient is φ = 20220000.

The previous prime is 25275001. The next prime is 25275031. The reversal of 25275025 is 52057252.

It can be written as a sum of positive squares in 3 ways, for example, as 2835856 + 22439169 = 1684^2 + 4737^2 .

It is not a de Polignac number, because 25275025 - 2⁷ = 25274897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25274984 and 25275002.

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, 505476 + ... + 505525.

Almost surely, 2^25275025 is an apocalyptic number.

25275025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25275025 is a deficient number, since it is larger than the sum of its proper divisors (6066037).

25275025 is a wasteful number, since it uses less digits than its factorization.

25275025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011011 (or 1011006 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 25275025 is about 5027.4272744616. The cubic root of 25275025 is about 293.4701030873.

The spelling of 25275025 in words is "twenty-five million, two hundred seventy-five thousand, twenty-five".