53783819 has 8 divisors (see below), whose sum is σ = 54798432. Its totient is φ = 52778880.

The previous prime is 53783803. The next prime is 53783831. The reversal of 53783819 is 91838735.

53783819 = T₉₇₀ + T₉₇₁ + ... + T₁₀₇₂.

It is a happy number.

53783819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53783819 - 2⁴ = 53783803 is a prime.

It is a super-2 number, since 2×53783819² = 5785398372449522, which contains 22 as substring.

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 53783819.

It is not an unprimeable number, because it can be changed into a prime (53783879) 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, 9329 + ... + 13949.

It is an arithmetic number, because the mean of its divisors is an integer number (6849804).

Almost surely, 2^53783819 is an apocalyptic number.

53783819 is a deficient number, since it is larger than the sum of its proper divisors (1014613).

53783819 is a wasteful number, since it uses less digits than its factorization.

53783819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4837.

The product of its digits is 181440, while the sum is 44.

The square root of 53783819 is about 7333.7452232812. The cubic root of 53783819 is about 377.4712496561.

The spelling of 53783819 in words is "fifty-three million, seven hundred eighty-three thousand, eight hundred nineteen".