25285401 has 6 divisors (see below), whose sum is σ = 36523370. Its totient is φ = 16856928.

The previous prime is 25285387. The next prime is 25285411. The reversal of 25285401 is 10458252.

It is a happy number.

25285401 is a `hidden beast` number, since 252 + 8 + 5 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15681600 + 9603801 = 3960^2 + 3099^2 .

It is not a de Polignac number, because 25285401 - 2¹⁴ = 25269017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25285411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1404736 + ... + 1404753.

Almost surely, 2^25285401 is an apocalyptic number.

It is an amenable number.

25285401 is a deficient number, since it is larger than the sum of its proper divisors (11237969).

25285401 is a wasteful number, since it uses less digits than its factorization.

25285401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809495 (or 2809492 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 25285401 is about 5028.4591079177. The cubic root of 25285401 is about 293.5102564165.

The spelling of 25285401 in words is "twenty-five million, two hundred eighty-five thousand, four hundred one".