25394628 has 24 divisors (see below), whose sum is σ = 67719232. Its totient is φ = 7255584.

The previous prime is 25394627. The next prime is 25394647. The reversal of 25394628 is 82649352.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25394627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151075 + ... + 151242.

Almost surely, 2^25394628 is an apocalyptic number.

25394628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25394628 is an abundant number, since it is smaller than the sum of its proper divisors (42324604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25394628 is a wasteful number, since it uses less digits than its factorization.

25394628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302331 (or 302329 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 25394628 is about 5039.3082858662. The cubic root of 25394628 is about 293.9322811313.

The spelling of 25394628 in words is "twenty-five million, three hundred ninety-four thousand, six hundred twenty-eight".