20526043 has 4 divisors (see below), whose sum is σ = 20535328. Its totient is φ = 20516760.

The previous prime is 20526031. The next prime is 20526047. The reversal of 20526043 is 34062502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34062502 = 2 ⋅17031251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20526043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20526047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 805 + ... + 6457.

It is an arithmetic number, because the mean of its divisors is an integer number (5133832).

Almost surely, 2^20526043 is an apocalyptic number.

20526043 is a deficient number, since it is larger than the sum of its proper divisors (9285).

20526043 is an equidigital number, since it uses as much as digits as its factorization.

20526043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9284.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20526043 is about 4530.5676244815. The cubic root of 20526043 is about 273.8010303594.

Adding to 20526043 its reverse (34062502), we get a palindrome (54588545).

The spelling of 20526043 in words is "twenty million, five hundred twenty-six thousand, forty-three".