52215650 has 24 divisors (see below), whose sum is σ = 97386624. Its totient is φ = 20829200.

The previous prime is 52215643. The next prime is 52215661. The reversal of 52215650 is 5651225.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20339 + ... + 22761.

It is an arithmetic number, because the mean of its divisors is an integer number (4057776).

Almost surely, 2^52215650 is an apocalyptic number.

52215650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52215650 is a deficient number, since it is larger than the sum of its proper divisors (45170974).

52215650 is a wasteful number, since it uses less digits than its factorization.

52215650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2866 (or 2861 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 52215650 is about 7226.0397175770. The cubic root of 52215650 is about 373.7663758704.

Adding to 52215650 its reverse (5651225), we get a palindrome (57866875).

The spelling of 52215650 in words is "fifty-two million, two hundred fifteen thousand, six hundred fifty".