16425530 has 16 divisors (see below), whose sum is σ = 32253984. Its totient is φ = 5972880.

The previous prime is 16425503. The next prime is 16425533. The reversal of 16425530 is 3552461.

It is a self number, because there is not a number n which added to its sum of digits gives 16425530.

It is not an unprimeable number, because it can be changed into a prime (16425533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74552 + ... + 74771.

It is an arithmetic number, because the mean of its divisors is an integer number (2015874).

Almost surely, 2^16425530 is an apocalyptic number.

16425530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16425530 is a deficient number, since it is larger than the sum of its proper divisors (15828454).

16425530 is a wasteful number, since it uses less digits than its factorization.

16425530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149341.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 16425530 is about 4052.8422125713. The cubic root of 16425530 is about 254.1985860955.

Adding to 16425530 its reverse (3552461), we get a palindrome (19977991).

The spelling of 16425530 in words is "sixteen million, four hundred twenty-five thousand, five hundred thirty".