25610401 has 8 divisors (see below), whose sum is σ = 26461224. Its totient is φ = 24768000.

The previous prime is 25610383. The next prime is 25610407. The reversal of 25610401 is 10401652.

It can be written as a sum of positive squares in 4 ways, for example, as 7420176 + 18190225 = 2724^2 + 4265^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25610401 - 2⁹ = 25609889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25610407) 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, 4401 + ... + 8401.

It is an arithmetic number, because the mean of its divisors is an integer number (3307653).

Almost surely, 2^25610401 is an apocalyptic number.

It is an amenable number.

25610401 is a deficient number, since it is larger than the sum of its proper divisors (850823).

25610401 is a wasteful number, since it uses less digits than its factorization.

25610401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 25610401 is about 5060.6719909514. The cubic root of 25610401 is about 294.7624286657.

The spelling of 25610401 in words is "twenty-five million, six hundred ten thousand, four hundred one".