25819230 has 16 divisors (see below), whose sum is σ = 61966224. Its totient is φ = 6885120.

The previous prime is 25819223. The next prime is 25819231. The reversal of 25819230 is 3291852.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 860641 = 25819230 / (2 + 5 + 8 + 1 + 9 + 2 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25819231) 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, 430291 + ... + 430350.

It is an arithmetic number, because the mean of its divisors is an integer number (3872889).

Almost surely, 2^25819230 is an apocalyptic number.

25819230 is an abundant number, since it is smaller than the sum of its proper divisors (36146994).

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

25819230 is a wasteful number, since it uses less digits than its factorization.

25819230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860651.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 25819230 is about 5081.2626383607. The cubic root of 25819230 is about 295.5614320245.

It can be divided in two parts, 2581 and 9230, that added together give a palindrome (11811).

The spelling of 25819230 in words is "twenty-five million, eight hundred nineteen thousand, two hundred thirty".