53664242 has 4 divisors (see below), whose sum is σ = 80496366. Its totient is φ = 26832120.

The previous prime is 53664211. The next prime is 53664251. The reversal of 53664242 is 24246635.

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

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 8357881 = 6731^2 + 2891^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53664199 and 53664208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13416059 + ... + 13416062.

Almost surely, 2^53664242 is an apocalyptic number.

53664242 is a deficient number, since it is larger than the sum of its proper divisors (26832124).

53664242 is a wasteful number, since it uses less digits than its factorization.

53664242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26832123.

The product of its digits is 34560, while the sum is 32.

The square root of 53664242 is about 7325.5881675126. The cubic root of 53664242 is about 377.1912994615.

The spelling of 53664242 in words is "fifty-three million, six hundred sixty-four thousand, two hundred forty-two".