53489642 has 8 divisors (see below), whose sum is σ = 82403076. Its totient is φ = 26021952.

The previous prime is 53489641. The next prime is 53489669. The reversal of 53489642 is 24698435.

It can be written as a sum of positive squares in 2 ways, for example, as 45711121 + 7778521 = 6761^2 + 2789^2 .

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

It is a super-2 number, since 2×53489642² = 5722283602576328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 53489642.

It is not an unprimeable number, because it can be changed into a prime (53489641) 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, 361343 + ... + 361490.

Almost surely, 2^53489642 is an apocalyptic number.

53489642 is a deficient number, since it is larger than the sum of its proper divisors (28913434).

53489642 is a wasteful number, since it uses less digits than its factorization.

53489642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722872.

The product of its digits is 207360, while the sum is 41.

The square root of 53489642 is about 7313.6613265860. The cubic root of 53489642 is about 376.7817831072.

The spelling of 53489642 in words is "fifty-three million, four hundred eighty-nine thousand, six hundred forty-two".