25036401 has 8 divisors (see below), whose sum is σ = 35949760. Its totient is φ = 15406992.

The previous prime is 25036307. The next prime is 25036409. The reversal of 25036401 is 10463052.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25036401 - 2⁹ = 25035889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25036409) 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 7 ways as a sum of consecutive naturals, for example, 320941 + ... + 321018.

It is an arithmetic number, because the mean of its divisors is an integer number (4493720).

Almost surely, 2^25036401 is an apocalyptic number.

It is an amenable number.

25036401 is a deficient number, since it is larger than the sum of its proper divisors (10913359).

25036401 is a wasteful number, since it uses less digits than its factorization.

25036401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641975.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 25036401 is about 5003.6387759310. The cubic root of 25036401 is about 292.5436212246.

Adding to 25036401 its reverse (10463052), we get a palindrome (35499453).

The spelling of 25036401 in words is "twenty-five million, thirty-six thousand, four hundred one".