25205230 has 16 divisors (see below), whose sum is σ = 45494784. Its totient is φ = 10054240.

The previous prime is 25205209. The next prime is 25205239. The reversal of 25205230 is 3250252.

It is a junction number, because it is equal to n+sod(n) for n = 25205198 and 25205207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25205239) 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, 540 + ... + 7120.

It is an arithmetic number, because the mean of its divisors is an integer number (2843424).

Almost surely, 2^25205230 is an apocalyptic number.

25205230 is a deficient number, since it is larger than the sum of its proper divisors (20289554).

25205230 is a wasteful number, since it uses less digits than its factorization.

25205230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6971.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 25205230 is about 5020.4810526482. The cubic root of 25205230 is about 293.1997224955.

Adding to 25205230 its reverse (3250252), we get a palindrome (28455482).

It can be divided in two parts, 2520 and 5230, that added together give a triangular number (7750 = T₁₂₄).

The spelling of 25205230 in words is "twenty-five million, two hundred five thousand, two hundred thirty".