25513033 has 16 divisors (see below), whose sum is σ = 31642240. Its totient is φ = 20030976.

The previous prime is 25513013. The next prime is 25513043. The reversal of 25513033 is 33031552.

It is a happy number.

It is not a de Polignac number, because 25513033 - 2⁵ = 25513001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25512995 and 25513013.

It is not an unprimeable number, because it can be changed into a prime (25513013) 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, 11641 + ... + 13657.

It is an arithmetic number, because the mean of its divisors is an integer number (1977640).

Almost surely, 2^25513033 is an apocalyptic number.

It is an amenable number.

25513033 is a deficient number, since it is larger than the sum of its proper divisors (6129207).

25513033 is a wasteful number, since it uses less digits than its factorization.

25513033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 25513033 is about 5051.0427636281. The cubic root of 25513033 is about 294.3884025404.

Adding to 25513033 its reverse (33031552), we get a palindrome (58544585).

The spelling of 25513033 in words is "twenty-five million, five hundred thirteen thousand, thirty-three".