53242939 has 4 divisors (see below), whose sum is σ = 53582224. Its totient is φ = 52903656.

The previous prime is 53242933. The next prime is 53242949. The reversal of 53242939 is 93924235.

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

It is a cyclic number.

It is not a de Polignac number, because 53242939 - 2¹⁹ = 52718651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53242898 and 53242907.

It is not an unprimeable number, because it can be changed into a prime (53242933) 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, 169407 + ... + 169720.

It is an arithmetic number, because the mean of its divisors is an integer number (13395556).

Almost surely, 2^53242939 is an apocalyptic number.

53242939 is a deficient number, since it is larger than the sum of its proper divisors (339285).

53242939 is a wasteful number, since it uses less digits than its factorization.

53242939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339284.

The product of its digits is 58320, while the sum is 37.

The square root of 53242939 is about 7296.7759318757. The cubic root of 53242939 is about 376.2016304821.

The spelling of 53242939 in words is "fifty-three million, two hundred forty-two thousand, nine hundred thirty-nine".