25628234 has 4 divisors (see below), whose sum is σ = 38442354. Its totient is φ = 12814116.

The previous prime is 25628221. The next prime is 25628249. The reversal of 25628234 is 43282652.

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

It can be written as a sum of positive squares in only one way, i.e., 25472209 + 156025 = 5047^2 + 395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25628234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6407057 + ... + 6407060.

Almost surely, 2^25628234 is an apocalyptic number.

25628234 is a deficient number, since it is larger than the sum of its proper divisors (12814120).

25628234 is a wasteful number, since it uses less digits than its factorization.

25628234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12814119.

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

The square root of 25628234 is about 5062.4336045029. The cubic root of 25628234 is about 294.8308289847.

The spelling of 25628234 in words is "twenty-five million, six hundred twenty-eight thousand, two hundred thirty-four".