25424002 has 8 divisors (see below), whose sum is σ = 38658636. Its totient is φ = 12537792.

The previous prime is 25423973. The next prime is 25424029. The reversal of 25424002 is 20042452.

It can be written as a sum of positive squares in 2 ways, for example, as 25411681 + 12321 = 5041^2 + 111^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86923 + ... + 87214.

Almost surely, 2^25424002 is an apocalyptic number.

25424002 is a deficient number, since it is larger than the sum of its proper divisors (13234634).

25424002 is a wasteful number, since it uses less digits than its factorization.

25424002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174212.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 25424002 is about 5042.2219308555. The cubic root of 25424002 is about 294.0455680830.

Adding to 25424002 its reverse (20042452), we get a palindrome (45466454).

The spelling of 25424002 in words is "twenty-five million, four hundred twenty-four thousand, two".