53165919 has 8 divisors (see below), whose sum is σ = 75057840. Its totient is φ = 33358976.

The previous prime is 53165911. The next prime is 53165921. The reversal of 53165919 is 91956135.

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 53165919 - 2³ = 53165911 is a prime.

It is a super-2 number, since 2×53165919² = 5653229886229122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53165911) 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, 521184 + ... + 521285.

It is an arithmetic number, because the mean of its divisors is an integer number (9382230).

Almost surely, 2^53165919 is an apocalyptic number.

53165919 is a deficient number, since it is larger than the sum of its proper divisors (21891921).

53165919 is a wasteful number, since it uses less digits than its factorization.

53165919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042489.

The product of its digits is 36450, while the sum is 39.

The square root of 53165919 is about 7291.4963484871. The cubic root of 53165919 is about 376.0201414252.

The spelling of 53165919 in words is "fifty-three million, one hundred sixty-five thousand, nine hundred nineteen".