52170242 has 4 divisors (see below), whose sum is σ = 78255366. Its totient is φ = 26085120.

The previous prime is 52170227. The next prime is 52170271. The reversal of 52170242 is 24207125.

It is a happy number.

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., 42367081 + 9803161 = 6509^2 + 3131^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13042559 + ... + 13042562.

Almost surely, 2^52170242 is an apocalyptic number.

52170242 is a deficient number, since it is larger than the sum of its proper divisors (26085124).

52170242 is a wasteful number, since it uses less digits than its factorization.

52170242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26085123.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 52170242 is about 7222.8970641980. The cubic root of 52170242 is about 373.6579990030.

Adding to 52170242 its reverse (24207125), we get a palindrome (76377367).

The spelling of 52170242 in words is "fifty-two million, one hundred seventy thousand, two hundred forty-two".