53119919 has 4 divisors (see below), whose sum is σ = 53209200. Its totient is φ = 53030640.

The previous prime is 53119897. The next prime is 53119931. The reversal of 53119919 is 91991135.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91991135 = 5 ⋅18398227.

It is a cyclic number.

It is not a de Polignac number, because 53119919 - 2¹⁶ = 53054383 is a prime.

It is a super-2 number, since 2×53119919² = 5643451589133122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53119219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43742 + ... + 44939.

It is an arithmetic number, because the mean of its divisors is an integer number (13302300).

Almost surely, 2^53119919 is an apocalyptic number.

53119919 is a deficient number, since it is larger than the sum of its proper divisors (89281).

53119919 is an equidigital number, since it uses as much as digits as its factorization.

53119919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89280.

The product of its digits is 10935, while the sum is 38.

The square root of 53119919 is about 7288.3413064977. The cubic root of 53119919 is about 375.9116639284.

The spelling of 53119919 in words is "fifty-three million, one hundred nineteen thousand, nine hundred nineteen".