25648430 has 8 divisors (see below), whose sum is σ = 46167192. Its totient is φ = 10259368.

The previous prime is 25648429. The next prime is 25648433. The reversal of 25648430 is 3484652.

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

It is a super-2 number, since 2×25648430² = 1315683922929800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25648433) 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, 1282412 + ... + 1282431.

It is an arithmetic number, because the mean of its divisors is an integer number (5770899).

Almost surely, 2^25648430 is an apocalyptic number.

25648430 is a deficient number, since it is larger than the sum of its proper divisors (20518762).

25648430 is a wasteful number, since it uses less digits than its factorization.

25648430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564850.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 25648430 is about 5064.4279045120. The cubic root of 25648430 is about 294.9082545304.

The spelling of 25648430 in words is "twenty-five million, six hundred forty-eight thousand, four hundred thirty".