19553996 has 24 divisors (see below), whose sum is σ = 42663936. Its totient is φ = 7618320.

The previous prime is 19553987. The next prime is 19554037. The reversal of 19553996 is 69935591.

It is a self number, because there is not a number n which added to its sum of digits gives 19553996.

It is an unprimeable number.

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, 31436 + ... + 32051.

It is an arithmetic number, because the mean of its divisors is an integer number (1777664).

Almost surely, 2^19553996 is an apocalyptic number.

It is an amenable number.

19553996 is an abundant number, since it is smaller than the sum of its proper divisors (23109940).

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

19553996 is a wasteful number, since it uses less digits than its factorization.

19553996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63509 (or 63507 counting only the distinct ones).

The product of its digits is 328050, while the sum is 47.

The square root of 19553996 is about 4421.9900497400. The cubic root of 19553996 is about 269.4088392090.

The spelling of 19553996 in words is "nineteen million, five hundred fifty-three thousand, nine hundred ninety-six".