53489894 has 4 divisors (see below), whose sum is σ = 80234844. Its totient is φ = 26744946.

The previous prime is 53489861. The next prime is 53489941. The reversal of 53489894 is 49898435.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×53489894² = 5722337520262472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13372472 + ... + 13372475.

It is an arithmetic number, because the mean of its divisors is an integer number (20058711).

Almost surely, 2^53489894 is an apocalyptic number.

53489894 is a deficient number, since it is larger than the sum of its proper divisors (26744950).

53489894 is a wasteful number, since it uses less digits than its factorization.

53489894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26744949.

The product of its digits is 1244160, while the sum is 50.

The square root of 53489894 is about 7313.6785545989. The cubic root of 53489894 is about 376.7823748035.

The spelling of 53489894 in words is "fifty-three million, four hundred eighty-nine thousand, eight hundred ninety-four".