19853057 has 8 divisors (see below), whose sum is σ = 23217216. Its totient is φ = 16620912.

The previous prime is 19853033. The next prime is 19853089. The reversal of 19853057 is 75035891.

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

It is not a de Polignac number, because 19853057 - 2¹⁴ = 19836673 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 19853057.

It is not an unprimeable number, because it can be changed into a prime (19853017) 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, 32678 + ... + 33279.

It is an arithmetic number, because the mean of its divisors is an integer number (2902152).

Almost surely, 2^19853057 is an apocalyptic number.

It is an amenable number.

19853057 is a deficient number, since it is larger than the sum of its proper divisors (3364159).

19853057 is an equidigital number, since it uses as much as digits as its factorization.

19853057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66007.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 19853057 is about 4455.6769407128. The cubic root of 19853057 is about 270.7753524692.

The spelling of 19853057 in words is "nineteen million, eight hundred fifty-three thousand, fifty-seven".