25629243 has 16 divisors (see below), whose sum is σ = 35726880. Its totient is φ = 16321536.

The previous prime is 25629239. The next prime is 25629257. The reversal of 25629243 is 34292652.

It is not a de Polignac number, because 25629243 - 2² = 25629239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25629293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6921 + ... + 9957.

It is an arithmetic number, because the mean of its divisors is an integer number (2232930).

Almost surely, 2^25629243 is an apocalyptic number.

25629243 is a deficient number, since it is larger than the sum of its proper divisors (10097637).

25629243 is a wasteful number, since it uses less digits than its factorization.

25629243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3166.

The product of its digits is 25920, while the sum is 33.

The square root of 25629243 is about 5062.5332591500. The cubic root of 25629243 is about 294.8346981601.

The spelling of 25629243 in words is "twenty-five million, six hundred twenty-nine thousand, two hundred forty-three".