53307242 has 4 divisors (see below), whose sum is σ = 79960866. Its totient is φ = 26653620.

The previous prime is 53307239. The next prime is 53307253. The reversal of 53307242 is 24270335.

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., 49547521 + 3759721 = 7039^2 + 1939^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13326809 + ... + 13326812.

Almost surely, 2^53307242 is an apocalyptic number.

53307242 is a deficient number, since it is larger than the sum of its proper divisors (26653624).

53307242 is a wasteful number, since it uses less digits than its factorization.

53307242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26653623.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 53307242 is about 7301.1808633946. The cubic root of 53307242 is about 376.3530193283.

Adding to 53307242 its reverse (24270335), we get a palindrome (77577577).

The spelling of 53307242 in words is "fifty-three million, three hundred seven thousand, two hundred forty-two".