25504601 has 8 divisors (see below), whose sum is σ = 26459400. Its totient is φ = 24554880.

The previous prime is 25504541. The next prime is 25504613. The reversal of 25504601 is 10640552.

It can be written as a sum of positive squares in 4 ways, for example, as 1729225 + 23775376 = 1315^2 + 4876^2 .

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

It is not a de Polignac number, because 25504601 - 2¹⁴ = 25488217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25504201) 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, 11165 + ... + 13253.

It is an arithmetic number, because the mean of its divisors is an integer number (3307425).

Almost surely, 2^25504601 is an apocalyptic number.

It is an amenable number.

25504601 is a deficient number, since it is larger than the sum of its proper divisors (954799).

25504601 is a wasteful number, since it uses less digits than its factorization.

25504601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 25504601 is about 5050.2080155178. The cubic root of 25504601 is about 294.3559673987.

The spelling of 25504601 in words is "twenty-five million, five hundred four thousand, six hundred one".