25061320 has 16 divisors (see below), whose sum is σ = 56388060. Its totient is φ = 10024512.

The previous prime is 25061287. The next prime is 25061327. The reversal of 25061320 is 2316052.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22829284 + 2232036 = 4778^2 + 1494^2 .

It is not an unprimeable number, because it can be changed into a prime (25061327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313227 + ... + 313306.

Almost surely, 2^25061320 is an apocalyptic number.

25061320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25061320 is an abundant number, since it is smaller than the sum of its proper divisors (31326740).

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

25061320 is a wasteful number, since it uses less digits than its factorization.

25061320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626544 (or 626540 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 25061320 is about 5006.1282444620. The cubic root of 25061320 is about 292.6406463157.

Adding to 25061320 its reverse (2316052), we get a palindrome (27377372).

The spelling of 25061320 in words is "twenty-five million, sixty-one thousand, three hundred twenty".