25159001 has 12 divisors (see below), whose sum is σ = 30059748. Its totient is φ = 20980512.

The previous prime is 25158971. The next prime is 25159003. The reversal of 25159001 is 10095152.

It can be written as a sum of positive squares in 2 ways, for example, as 11909401 + 13249600 = 3451^2 + 3640^2 .

It is a de Polignac number, because none of the positive numbers 2^k-25159001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25159003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5126 + ... + 8751.

It is an arithmetic number, because the mean of its divisors is an integer number (2504979).

Almost surely, 2^25159001 is an apocalyptic number.

It is an amenable number.

25159001 is a deficient number, since it is larger than the sum of its proper divisors (4900747).

25159001 is a wasteful number, since it uses less digits than its factorization.

25159001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13928 (or 13921 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 25159001 is about 5015.8748987589. The cubic root of 25159001 is about 293.0203599173.

The spelling of 25159001 in words is "twenty-five million, one hundred fifty-nine thousand, one".