16425516 has 12 divisors (see below), whose sum is σ = 38326232. Its totient is φ = 5475168.

The previous prime is 16425503. The next prime is 16425533. The reversal of 16425516 is 61552461.

16425516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 684385 + ... + 684408.

Almost surely, 2^16425516 is an apocalyptic number.

It is an amenable number.

16425516 is an abundant number, since it is smaller than the sum of its proper divisors (21900716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16425516 is a wasteful number, since it uses less digits than its factorization.

16425516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368800 (or 1368798 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 16425516 is about 4052.8404853880. The cubic root of 16425516 is about 254.1985138749.

Adding to 16425516 its reverse (61552461), we get a palindrome (77977977).

The spelling of 16425516 in words is "sixteen million, four hundred twenty-five thousand, five hundred sixteen".