20526741 has 24 divisors (see below), whose sum is σ = 31539456. Its totient is φ = 12835680.

The previous prime is 20526721. The next prime is 20526763. The reversal of 20526741 is 14762502.

It is not a de Polignac number, because 20526741 - 2¹⁸ = 20264597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20526721) 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 23 ways as a sum of consecutive naturals, for example, 10036 + ... + 11906.

It is an arithmetic number, because the mean of its divisors is an integer number (1314144).

Almost surely, 2^20526741 is an apocalyptic number.

It is an amenable number.

20526741 is a deficient number, since it is larger than the sum of its proper divisors (11012715).

20526741 is a wasteful number, since it uses less digits than its factorization.

20526741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20526741 is about 4530.6446561168. The cubic root of 20526741 is about 273.8041339118.

The spelling of 20526741 in words is "twenty million, five hundred twenty-six thousand, seven hundred forty-one".