52135242 has 16 divisors (see below), whose sum is σ = 107634432. Its totient is φ = 16817760.

The previous prime is 52135219. The next prime is 52135247. The reversal of 52135242 is 24253125.

It is not an unprimeable number, because it can be changed into a prime (52135247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139963 + ... + 140334.

It is an arithmetic number, because the mean of its divisors is an integer number (6727152).

Almost surely, 2^52135242 is an apocalyptic number.

52135242 is an abundant number, since it is smaller than the sum of its proper divisors (55499190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52135242 is a wasteful number, since it uses less digits than its factorization.

52135242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280333.

The product of its digits is 2400, while the sum is 24.

The square root of 52135242 is about 7220.4738071681. The cubic root of 52135242 is about 373.5744203500.

Adding to 52135242 its reverse (24253125), we get a palindrome (76388367).

The spelling of 52135242 in words is "fifty-two million, one hundred thirty-five thousand, two hundred forty-two".