52240042 has 8 divisors (see below), whose sum is σ = 78506532. Its totient is φ = 26071200.

The previous prime is 52239989. The next prime is 52240043. The reversal of 52240042 is 24004225.

It can be written as a sum of positive squares in 2 ways, for example, as 51854401 + 385641 = 7201^2 + 621^2 .

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

It is not an unprimeable number, because it can be changed into a prime (52240043) 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, 23059 + ... + 25222.

Almost surely, 2^52240042 is an apocalyptic number.

52240042 is a deficient number, since it is larger than the sum of its proper divisors (26266490).

52240042 is a wasteful number, since it uses less digits than its factorization.

52240042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48824.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 52240042 is about 7227.7273053153. The cubic root of 52240042 is about 373.8245671737.

Adding to 52240042 its reverse (24004225), we get a palindrome (76244267).

The spelling of 52240042 in words is "fifty-two million, two hundred forty thousand, forty-two".