20652541 has 16 divisors (see below), whose sum is σ = 26242048. Its totient is φ = 15811200.

The previous prime is 20652523. The next prime is 20652547. The reversal of 20652541 is 14525602.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20652541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652547) 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, 840 + ... + 6481.

It is an arithmetic number, because the mean of its divisors is an integer number (1640128).

Almost surely, 2^20652541 is an apocalyptic number.

It is an amenable number.

20652541 is a deficient number, since it is larger than the sum of its proper divisors (5589507).

20652541 is a wasteful number, since it uses less digits than its factorization.

20652541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7372.

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

The square root of 20652541 is about 4544.5066838987. The cubic root of 20652541 is about 274.3623396382.

The spelling of 20652541 in words is "twenty million, six hundred fifty-two thousand, five hundred forty-one".