19936225 has 27 divisors (see below), whose sum is σ = 26657427. Its totient is φ = 14788080.

The previous prime is 19936211. The next prime is 19936247. The reversal of 19936225 is 52263991.

19936225 = 1³ + 2³ + ... + 94³.

The square root of 19936225 is 4465.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7177041 + 12759184 = 2679^2 + 3572^2 .

It is not a de Polignac number, because 19936225 - 2¹³ = 19928033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 424152 + ... + 424198.

Almost surely, 2^19936225 is an apocalyptic number.

19936225 is the 4465-th square number.

19936225 is the 2233-rd centered octagonal number.

It is an amenable number.

19936225 is a deficient number, since it is larger than the sum of its proper divisors (6721202).

19936225 is an equidigital number, since it uses as much as digits as its factorization.

19936225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 71 counting only the distinct ones).

The product of its digits is 29160, while the sum is 37.

The cubic root of 19936225 is about 271.1529344699.

The spelling of 19936225 in words is "nineteen million, nine hundred thirty-six thousand, two hundred twenty-five".