16425903 has 8 divisors (see below), whose sum is σ = 23585968. Its totient is φ = 10108224.

The previous prime is 16425881. The next prime is 16425907. The reversal of 16425903 is 30952461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16425903 - 2⁶ = 16425839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16425907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210550 + ... + 210627.

It is an arithmetic number, because the mean of its divisors is an integer number (2948246).

Almost surely, 2^16425903 is an apocalyptic number.

16425903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16425903 is a deficient number, since it is larger than the sum of its proper divisors (7160065).

16425903 is a wasteful number, since it uses less digits than its factorization.

16425903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421193.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 16425903 is about 4052.8882293989. Note that the first 3 decimals coincide. The cubic root of 16425903 is about 254.2005102415.

The spelling of 16425903 in words is "sixteen million, four hundred twenty-five thousand, nine hundred three".