16225715 has 16 divisors (see below), whose sum is σ = 22360320. Its totient is φ = 11178720.

The previous prime is 16225711. The next prime is 16225739. The reversal of 16225715 is 51752261.

It is not a de Polignac number, because 16225715 - 2² = 16225711 is a prime.

It is a super-2 number, since 2×16225715² = 526547654522450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16225711) 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, 6719 + ... + 8808.

It is an arithmetic number, because the mean of its divisors is an integer number (1397520).

Almost surely, 2^16225715 is an apocalyptic number.

16225715 is a deficient number, since it is larger than the sum of its proper divisors (6134605).

16225715 is a wasteful number, since it uses less digits than its factorization.

16225715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15562.

The product of its digits is 4200, while the sum is 29.

The square root of 16225715 is about 4028.1155643799. The cubic root of 16225715 is about 253.1636107336.

Adding to 16225715 its reverse (51752261), we get a palindrome (67977976).

It can be divided in two parts, 1622 and 5715, that added together give a palindrome (7337).

The spelling of 16225715 in words is "sixteen million, two hundred twenty-five thousand, seven hundred fifteen".