20527450 has 24 divisors (see below), whose sum is σ = 38301120. Its totient is φ = 8185200.

The previous prime is 20527427. The next prime is 20527453. The reversal of 20527450 is 5472502.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (20527453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28191 + ... + 28909.

It is an arithmetic number, because the mean of its divisors is an integer number (1595880).

Almost surely, 2^20527450 is an apocalyptic number.

20527450 is a deficient number, since it is larger than the sum of its proper divisors (17773670).

20527450 is a wasteful number, since it uses less digits than its factorization.

20527450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 20527450 is about 4530.7229003769. The cubic root of 20527450 is about 273.8072863021.

Adding to 20527450 its reverse (5472502), we get a palindrome (25999952).

The spelling of 20527450 in words is "twenty million, five hundred twenty-seven thousand, four hundred fifty".