16225155 has 24 divisors (see below), whose sum is σ = 28658448. Its totient is φ = 8488896.

The previous prime is 16225141. The next prime is 16225163. The reversal of 16225155 is 55152261.

It is not a de Polignac number, because 16225155 - 2¹⁴ = 16208771 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1017 + ... + 5786.

It is an arithmetic number, because the mean of its divisors is an integer number (1194102).

Almost surely, 2^16225155 is an apocalyptic number.

16225155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16225155 is a deficient number, since it is larger than the sum of its proper divisors (12433293).

16225155 is a wasteful number, since it uses less digits than its factorization.

16225155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867 (or 6864 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 16225155 is about 4028.0460523683. The cubic root of 16225155 is about 253.1606982117.

It can be divided in two parts, 1 and 6225155, that added together give a triangular number (6225156 = T₃₅₂₈).

The spelling of 16225155 in words is "sixteen million, two hundred twenty-five thousand, one hundred fifty-five".