16525313 has 4 divisors (see below), whose sum is σ = 18886080. Its totient is φ = 14164548.

The previous prime is 16525303. The next prime is 16525319. The reversal of 16525313 is 31352561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31352561 = 163 ⋅192347.

It is a cyclic number.

It is not a de Polignac number, because 16525313 - 2⁸ = 16525057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (16525319) 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, 1180373 + ... + 1180386.

It is an arithmetic number, because the mean of its divisors is an integer number (4721520).

Almost surely, 2^16525313 is an apocalyptic number.

It is an amenable number.

16525313 is a deficient number, since it is larger than the sum of its proper divisors (2360767).

16525313 is an equidigital number, since it uses as much as digits as its factorization.

16525313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2360766.

The product of its digits is 2700, while the sum is 26.

The square root of 16525313 is about 4065.1338231355. The cubic root of 16525313 is about 254.7122886006.

Adding to 16525313 its reverse (31352561), we get a palindrome (47877874).

The spelling of 16525313 in words is "sixteen million, five hundred twenty-five thousand, three hundred thirteen".