20527616 has 20 divisors (see below), whose sum is σ = 41016162. Its totient is φ = 10263552.

The previous prime is 20527613. The next prime is 20527631. The reversal of 20527616 is 61672502.

It can be written as a sum of positive squares in only one way, i.e., 20214016 + 313600 = 4496^2 + 560^2 .

It is not an unprimeable number, because it can be changed into a prime (20527613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19535 + ... + 20558.

Almost surely, 2^20527616 is an apocalyptic number.

It is an amenable number.

20527616 is a deficient number, since it is larger than the sum of its proper divisors (20488546).

20527616 is an frugal number, since it uses more digits than its factorization.

20527616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40111 (or 40095 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 20527616 is about 4530.7412197123. The cubic root of 20527616 is about 273.8080243689.

The spelling of 20527616 in words is "twenty million, five hundred twenty-seven thousand, six hundred sixteen".