25479001 has 4 divisors (see below), whose sum is σ = 25801600. Its totient is φ = 25156404.

The previous prime is 25478969. The next prime is 25479011. The reversal of 25479001 is 10097452.

It is a happy number.

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 25479001 - 2⁵ = 25478969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25479011) 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, 161181 + ... + 161338.

It is an arithmetic number, because the mean of its divisors is an integer number (6450400).

Almost surely, 2^25479001 is an apocalyptic number.

It is an amenable number.

25479001 is a deficient number, since it is larger than the sum of its proper divisors (322599).

25479001 is an equidigital number, since it uses as much as digits as its factorization.

25479001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322598.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 25479001 is about 5047.6728301268. The cubic root of 25479001 is about 294.2574487640.

The spelling of 25479001 in words is "twenty-five million, four hundred seventy-nine thousand, one".