52531616 has 12 divisors (see below), whose sum is σ = 103421682. Its totient is φ = 26265792.

The previous prime is 52531597. The next prime is 52531621. The reversal of 52531616 is 61613525.

It can be written as a sum of positive squares in only one way, i.e., 36048016 + 16483600 = 6004^2 + 4060^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820775 + ... + 820838.

Almost surely, 2^52531616 is an apocalyptic number.

It is an amenable number.

52531616 is a deficient number, since it is larger than the sum of its proper divisors (50890066).

52531616 is a wasteful number, since it uses less digits than its factorization.

52531616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641623 (or 1641615 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 52531616 is about 7247.8697560042. The cubic root of 52531616 is about 374.5187687823.

It can be divided in two parts, 5253 and 1616, that multiplied together give a palindrome (8488848).

The spelling of 52531616 in words is "fifty-two million, five hundred thirty-one thousand, six hundred sixteen".