52308642 has 16 divisors (see below), whose sum is σ = 106179552. Its totient is φ = 17175840.

The previous prime is 52308631. The next prime is 52308649. The reversal of 52308642 is 24680325.

It is not an unprimeable number, because it can be changed into a prime (52308649) 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, 64659 + ... + 65462.

It is an arithmetic number, because the mean of its divisors is an integer number (6636222).

Almost surely, 2^52308642 is an apocalyptic number.

52308642 is an abundant number, since it is smaller than the sum of its proper divisors (53870910).

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

52308642 is a wasteful number, since it uses less digits than its factorization.

52308642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130193.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 52308642 is about 7232.4713618514. The cubic root of 52308642 is about 373.9881272028.

Adding to 52308642 its reverse (24680325), we get a palindrome (76988967).

The spelling of 52308642 in words is "fifty-two million, three hundred eight thousand, six hundred forty-two".