20527320 has 64 divisors (see below), whose sum is σ = 67184640. Its totient is φ = 4976000.

The previous prime is 20527319. The next prime is 20527327. The reversal of 20527320 is 2372502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20527327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6456 + ... + 9095.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 2^20527320 is an apocalyptic number.

20527320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20527320 is an abundant number, since it is smaller than the sum of its proper divisors (46657320).

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

20527320 is a wasteful number, since it uses less digits than its factorization.

20527320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15576 (or 15572 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 20527320 is about 4530.7085538578. The cubic root of 20527320 is about 273.8067082952.

Adding to 20527320 its reverse (2372502), we get a palindrome (22899822).

The spelling of 20527320 in words is "twenty million, five hundred twenty-seven thousand, three hundred twenty".