25003479 has 4 divisors (see below), whose sum is σ = 33337976. Its totient is φ = 16668984.

The previous prime is 25003477. The next prime is 25003493. The reversal of 25003479 is 97430052.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25003479 - 2¹ = 25003477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25003471) 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, 4167244 + ... + 4167249.

It is an arithmetic number, because the mean of its divisors is an integer number (8334494).

Almost surely, 2^25003479 is an apocalyptic number.

25003479 is a deficient number, since it is larger than the sum of its proper divisors (8334497).

25003479 is an equidigital number, since it uses as much as digits as its factorization.

25003479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8334496.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 25003479 is about 5000.3478878974. The cubic root of 25003479 is about 292.4153367358.

The spelling of 25003479 in words is "twenty-five million, three thousand, four hundred seventy-nine".