52315642 has 16 divisors (see below), whose sum is σ = 79408512. Its totient is φ = 25848160.

The previous prime is 52315633. The next prime is 52315643. The reversal of 52315642 is 24651325.

It is a self number, because there is not a number n which added to its sum of digits gives 52315642.

It is not an unprimeable number, because it can be changed into a prime (52315643) 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, 117873 + ... + 118315.

It is an arithmetic number, because the mean of its divisors is an integer number (4963032).

Almost surely, 2^52315642 is an apocalyptic number.

52315642 is a deficient number, since it is larger than the sum of its proper divisors (27092870).

52315642 is a wasteful number, since it uses less digits than its factorization.

52315642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013.

The product of its digits is 7200, while the sum is 28.

The square root of 52315642 is about 7232.9552742983. The cubic root of 52315642 is about 374.0048089595.

Adding to 52315642 its reverse (24651325), we get a palindrome (76966967).

The spelling of 52315642 in words is "fifty-two million, three hundred fifteen thousand, six hundred forty-two".