16425003 has 16 divisors (see below), whose sum is σ = 25706240. Its totient is φ = 9131616.

The previous prime is 16424999. The next prime is 16425007. The reversal of 16425003 is 30052461.

It is a happy number.

16425003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16424999) and next prime (16425007).

It is not a de Polignac number, because 16425003 - 2² = 16424999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (16425007) 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, 9793 + ... + 11346.

It is an arithmetic number, because the mean of its divisors is an integer number (1606640).

Almost surely, 2^16425003 is an apocalyptic number.

16425003 is a deficient number, since it is larger than the sum of its proper divisors (9281237).

16425003 is a wasteful number, since it uses less digits than its factorization.

16425003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21186.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 16425003 is about 4052.7771959485. Note that the first 3 decimals coincide. The cubic root of 16425003 is about 254.1958674802.

Adding to 16425003 its reverse (30052461), we get a palindrome (46477464).

The spelling of 16425003 in words is "sixteen million, four hundred twenty-five thousand, three".