20496853 has 16 divisors (see below), whose sum is σ = 23220736. Its totient is φ = 17962560.

The previous prime is 20496851. The next prime is 20496857. The reversal of 20496853 is 35869402.

It is a cyclic number.

It is not a de Polignac number, because 20496853 - 2¹ = 20496851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20496851) 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, 20188 + ... + 21178.

It is an arithmetic number, because the mean of its divisors is an integer number (1451296).

Almost surely, 2^20496853 is an apocalyptic number.

It is an amenable number.

20496853 is a deficient number, since it is larger than the sum of its proper divisors (2723883).

20496853 is a wasteful number, since it uses less digits than its factorization.

20496853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 20496853 is about 4527.3450277177. The cubic root of 20496853 is about 273.6711783521.

The spelling of 20496853 in words is "twenty million, four hundred ninety-six thousand, eight hundred fifty-three".