20526180 has 48 divisors (see below), whose sum is σ = 57865920. Its totient is φ = 5436288.

The previous prime is 20526173. The next prime is 20526193. The reversal of 20526180 is 8162502.

It is a self number, because there is not a number n which added to its sum of digits gives 20526180.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8331 + ... + 10509.

It is an arithmetic number, because the mean of its divisors is an integer number (1205540).

Almost surely, 2^20526180 is an apocalyptic number.

20526180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20526180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28932960).

20526180 is an abundant number, since it is smaller than the sum of its proper divisors (37339740).

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

20526180 is a wasteful number, since it uses less digits than its factorization.

20526180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2348 (or 2346 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 20526180 is about 4530.5827439746. The cubic root of 20526180 is about 273.8016395149.

Adding to 20526180 its reverse (8162502), we get a palindrome (28688682).

It can be divided in two parts, 20526 and 180, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 20526180 in words is "twenty million, five hundred twenty-six thousand, one hundred eighty".