19550113 has 8 divisors (see below), whose sum is σ = 21409920. Its totient is φ = 17704080.

The previous prime is 19550099. The next prime is 19550123. The reversal of 19550113 is 31105591.

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

It is a cyclic number.

It is not a de Polignac number, because 19550113 - 2⁵ = 19550081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19550123) 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, 345 + ... + 6262.

It is an arithmetic number, because the mean of its divisors is an integer number (2676240).

Almost surely, 2^19550113 is an apocalyptic number.

It is an amenable number.

19550113 is a deficient number, since it is larger than the sum of its proper divisors (1859807).

19550113 is a wasteful number, since it uses less digits than its factorization.

19550113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6887.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 19550113 is about 4421.5509722268. The cubic root of 19550113 is about 269.3910051088.

The spelling of 19550113 in words is "nineteen million, five hundred fifty thousand, one hundred thirteen".