25538234 has 16 divisors (see below), whose sum is σ = 41264640. Its totient is φ = 11819280.

The previous prime is 25538231. The next prime is 25538237. The reversal of 25538234 is 43283552.

It is an interprime number because it is at equal distance from previous prime (25538231) and next prime (25538237).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25538234.

It is not an unprimeable number, because it can be changed into a prime (25538231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7529 + ... + 10380.

It is an arithmetic number, because the mean of its divisors is an integer number (2579040).

Almost surely, 2^25538234 is an apocalyptic number.

25538234 is a deficient number, since it is larger than the sum of its proper divisors (15726406).

25538234 is a wasteful number, since it uses less digits than its factorization.

25538234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17965.

The product of its digits is 28800, while the sum is 32.

The square root of 25538234 is about 5053.5367813048. The cubic root of 25538234 is about 294.4852999543.

The spelling of 25538234 in words is "twenty-five million, five hundred thirty-eight thousand, two hundred thirty-four".