52501636 has 24 divisors (see below), whose sum is σ = 105507360. Its totient is φ = 22608000.

The previous prime is 52501633. The next prime is 52501717. The reversal of 52501636 is 63610525.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (52501633) 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, 30565 + ... + 32236.

It is an arithmetic number, because the mean of its divisors is an integer number (4396140).

Almost surely, 2^52501636 is an apocalyptic number.

It is an amenable number.

52501636 is an abundant number, since it is smaller than the sum of its proper divisors (53005724).

52501636 is a wasteful number, since it uses less digits than its factorization.

52501636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62835 (or 62833 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 52501636 is about 7245.8012669407. The cubic root of 52501636 is about 374.4475087793.

Subtracting 52501636 from its reverse (63610525), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 5250 and 1636, that added together give a palindrome (6886).

The spelling of 52501636 in words is "fifty-two million, five hundred one thousand, six hundred thirty-six".