16225623 has 8 divisors (see below), whose sum is σ = 24038000. Its totient is φ = 10817064.

The previous prime is 16225621. The next prime is 16225681. The reversal of 16225623 is 32652261.

16225623 is a `hidden beast` number, since 16 + 2 + 25 + 623 = 666.

It is not a de Polignac number, because 16225623 - 2¹ = 16225621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 600949 = 16225623 / (1 + 6 + 2 + 2 + 5 + 6 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16225621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300448 + ... + 300501.

It is an arithmetic number, because the mean of its divisors is an integer number (3004750).

Almost surely, 2^16225623 is an apocalyptic number.

16225623 is a deficient number, since it is larger than the sum of its proper divisors (7812377).

16225623 is an equidigital number, since it uses as much as digits as its factorization.

16225623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600958 (or 600952 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 16225623 is about 4028.1041446318. The cubic root of 16225623 is about 253.1631322525.

Adding to 16225623 its reverse (32652261), we get a palindrome (48877884).

The spelling of 16225623 in words is "sixteen million, two hundred twenty-five thousand, six hundred twenty-three".