20528053 has 8 divisors (see below), whose sum is σ = 25265408. Its totient is φ = 16241904.

The previous prime is 20528051. The next prime is 20528069. The reversal of 20528053 is 35082502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20528053 - 2¹ = 20528051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20528051) 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, 112701 + ... + 112882.

It is an arithmetic number, because the mean of its divisors is an integer number (3158176).

Almost surely, 2^20528053 is an apocalyptic number.

It is an amenable number.

20528053 is a deficient number, since it is larger than the sum of its proper divisors (4737355).

20528053 is a wasteful number, since it uses less digits than its factorization.

20528053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225603.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20528053 is about 4530.7894455602. The cubic root of 20528053 is about 273.8099673329.

Subtracting from 20528053 its sum of digits (25), we obtain a triangular number (20528028 = T₆₄₀₇).

The spelling of 20528053 in words is "twenty million, five hundred twenty-eight thousand, fifty-three".