25513030 has 16 divisors (see below), whose sum is σ = 46287360. Its totient is φ = 10124352.

The previous prime is 25513013. The next prime is 25513043. The reversal of 25513030 is 3031552.

It is a junction number, because it is equal to n+sod(n) for n = 25512989 and 25513007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8775 + ... + 11314.

It is an arithmetic number, because the mean of its divisors is an integer number (2892960).

Almost surely, 2^25513030 is an apocalyptic number.

25513030 is a deficient number, since it is larger than the sum of its proper divisors (20774330).

25513030 is a wasteful number, since it uses less digits than its factorization.

25513030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20223.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 25513030 is about 5051.0424666597. The cubic root of 25513030 is about 294.3883910016.

Adding to 25513030 its reverse (3031552), we get a palindrome (28544582).

The spelling of 25513030 in words is "twenty-five million, five hundred thirteen thousand, thirty".