53489443 has 8 divisors (see below), whose sum is σ = 61178112. Its totient is φ = 45812616.

The previous prime is 53489441. The next prime is 53489473. The reversal of 53489443 is 34498435.

It is a happy number.

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 53489443 - 2¹ = 53489441 is a prime.

It is a super-2 number, since 2×53489443² = 5722241024900498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53489396 and 53489405.

It is not an unprimeable number, because it can be changed into a prime (53489441) 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, 11346 + ... + 15352.

It is an arithmetic number, because the mean of its divisors is an integer number (7647264).

Almost surely, 2^53489443 is an apocalyptic number.

53489443 is a deficient number, since it is larger than the sum of its proper divisors (7688669).

53489443 is a wasteful number, since it uses less digits than its factorization.

53489443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5921.

The product of its digits is 207360, while the sum is 40.

The square root of 53489443 is about 7313.6477218964. The cubic root of 53489443 is about 376.7813158537.

The spelling of 53489443 in words is "fifty-three million, four hundred eighty-nine thousand, four hundred forty-three".