25516330 has 32 divisors (see below), whose sum is σ = 52669440. Its totient is φ = 8718720.

The previous prime is 25516327. The next prime is 25516333. The reversal of 25516330 is 3361552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25516327) and next prime (25516333).

It is a junction number, because it is equal to n+sod(n) for n = 25516295 and 25516304.

It is not an unprimeable number, because it can be changed into a prime (25516333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33150 + ... + 33910.

It is an arithmetic number, because the mean of its divisors is an integer number (1645920).

Almost surely, 2^25516330 is an apocalyptic number.

25516330 is an abundant number, since it is smaller than the sum of its proper divisors (27153110).

25516330 is a wasteful number, since it uses less digits than its factorization.

25516330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 25516330 is about 5051.3691213373. The cubic root of 25516330 is about 294.4010830758.

Adding to 25516330 its reverse (3361552), we get a palindrome (28877882).

The spelling of 25516330 in words is "twenty-five million, five hundred sixteen thousand, three hundred thirty".