20502053 has 16 divisors (see below), whose sum is σ = 24216192. Its totient is φ = 17112000.

The previous prime is 20502049. The next prime is 20502059. The reversal of 20502053 is 35020502.

It is a cyclic number.

It is not a de Polignac number, because 20502053 - 2² = 20502049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20502059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44243 + ... + 44703.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512).

Almost surely, 2^20502053 is an apocalyptic number.

It is an amenable number.

20502053 is a deficient number, since it is larger than the sum of its proper divisors (3714139).

20502053 is a wasteful number, since it uses less digits than its factorization.

20502053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 300, while the sum is 17.

The square root of 20502053 is about 4527.9192793158. The cubic root of 20502053 is about 273.6943196249.

Adding to 20502053 its reverse (35020502), we get a palindrome (55522555).

The spelling of 20502053 in words is "twenty million, five hundred two thousand, fifty-three".