53665442 has 8 divisors (see below), whose sum is σ = 80761296. Its totient is φ = 26745012.

The previous prime is 53665427. The next prime is 53665483. The reversal of 53665442 is 24456635.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43088 + ... + 44315.

It is an arithmetic number, because the mean of its divisors is an integer number (10095162).

Almost surely, 2^53665442 is an apocalyptic number.

53665442 is a deficient number, since it is larger than the sum of its proper divisors (27095854).

53665442 is a wasteful number, since it uses less digits than its factorization.

53665442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87712.

The product of its digits is 86400, while the sum is 35.

The square root of 53665442 is about 7325.6700717409. The cubic root of 53665442 is about 377.1941109313.

The spelling of 53665442 in words is "fifty-three million, six hundred sixty-five thousand, four hundred forty-two".