25461601 has 4 divisors (see below), whose sum is σ = 27776304. Its totient is φ = 23146900.

The previous prime is 25461593. The next prime is 25461607. The reversal of 25461601 is 10616452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25461601 - 2³ = 25461593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25461607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157335 + ... + 1157356.

It is an arithmetic number, because the mean of its divisors is an integer number (6944076).

Almost surely, 2^25461601 is an apocalyptic number.

It is an amenable number.

25461601 is a deficient number, since it is larger than the sum of its proper divisors (2314703).

25461601 is a wasteful number, since it uses less digits than its factorization.

25461601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2314702.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 25461601 is about 5045.9489692227. The cubic root of 25461601 is about 294.1904492039.

It can be divided in two parts, 25461 and 601, that added together give a palindrome (26062).

The spelling of 25461601 in words is "twenty-five million, four hundred sixty-one thousand, six hundred one".