25393901 has 8 divisors (see below), whose sum is σ = 27403320. Its totient is φ = 23392512.

The previous prime is 25393889. The next prime is 25393939. The reversal of 25393901 is 10939352.

It can be written as a sum of positive squares in 4 ways, for example, as 133225 + 25260676 = 365^2 + 5026^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-25393901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25393001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5681 + ... + 9113.

It is an arithmetic number, because the mean of its divisors is an integer number (3425415).

Almost surely, 2^25393901 is an apocalyptic number.

It is an amenable number.

25393901 is a deficient number, since it is larger than the sum of its proper divisors (2009419).

25393901 is a wasteful number, since it uses less digits than its factorization.

25393901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 25393901 is about 5039.2361524342. The cubic root of 25393901 is about 293.9294761968.

The spelling of 25393901 in words is "twenty-five million, three hundred ninety-three thousand, nine hundred one".