20045526 has 16 divisors (see below), whose sum is σ = 40168128. Its totient is φ = 6669000.

The previous prime is 20045521. The next prime is 20045537. The reversal of 20045526 is 62554002.

It is a super-2 number, since 2×20045526² = 803646225233352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20045496 and 20045505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501 + ... + 6351.

It is an arithmetic number, because the mean of its divisors is an integer number (2510508).

Almost surely, 2^20045526 is an apocalyptic number.

20045526 is an abundant number, since it is smaller than the sum of its proper divisors (20122602).

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

20045526 is a wasteful number, since it uses less digits than its factorization.

20045526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 20045526 is about 4477.2230232589. The cubic root of 20045526 is about 271.6475665412.

Adding to 20045526 its reverse (62554002), we get a palindrome (82599528).

The spelling of 20045526 in words is "twenty million, forty-five thousand, five hundred twenty-six".