25925401 has 4 divisors (see below), whose sum is σ = 25950132. Its totient is φ = 25900672.

The previous prime is 25925371. The next prime is 25925429. The reversal of 25925401 is 10452952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16321600 + 9603801 = 4040^2 + 3099^2 .

It is a cyclic number.

It is not a de Polignac number, because 25925401 - 2⁹ = 25924889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25925401.

It is not an unprimeable number, because it can be changed into a prime (25925441) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10720 + ... + 12913.

It is an arithmetic number, because the mean of its divisors is an integer number (6487533).

Almost surely, 2^25925401 is an apocalyptic number.

It is an amenable number.

25925401 is a deficient number, since it is larger than the sum of its proper divisors (24731).

25925401 is a wasteful number, since it uses less digits than its factorization.

25925401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24730.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 25925401 is about 5091.6992252096. The cubic root of 25925401 is about 295.9660030653.

It can be divided in two parts, 2 and 5925401, that added together give a triangular number (5925403 = T₃₄₄₂).

The spelling of 25925401 in words is "twenty-five million, nine hundred twenty-five thousand, four hundred one".