19550051 has 8 divisors (see below), whose sum is σ = 20963520. Its totient is φ = 18165888.

The previous prime is 19550029. The next prime is 19550053. The reversal of 19550051 is 15005591.

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 19550051 - 2¹⁴ = 19533667 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19550051.

It is not an unprimeable number, because it can be changed into a prime (19550053) by changing a digit.

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, 5936 + ... + 8621.

It is an arithmetic number, because the mean of its divisors is an integer number (2620440).

Almost surely, 2^19550051 is an apocalyptic number.

19550051 is a deficient number, since it is larger than the sum of its proper divisors (1413469).

19550051 is a wasteful number, since it uses less digits than its factorization.

19550051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14653.

The product of its (nonzero) digits is 1125, while the sum is 26.

The square root of 19550051 is about 4421.5439611068. The cubic root of 19550051 is about 269.3907203319.

The spelling of 19550051 in words is "nineteen million, five hundred fifty thousand, fifty-one".