20548953 has 12 divisors (see below), whose sum is σ = 29725488. Its totient is φ = 13679160.

The previous prime is 20548951. The next prime is 20548961. The reversal of 20548953 is 35984502.

20548953 is a `hidden beast` number, since 20 + 548 + 95 + 3 = 666.

It is not a de Polignac number, because 20548953 - 2¹ = 20548951 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20548951) 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 11 ways as a sum of consecutive naturals, for example, 7318 + ... + 9728.

It is an arithmetic number, because the mean of its divisors is an integer number (2477124).

Almost surely, 2^20548953 is an apocalyptic number.

It is an amenable number.

20548953 is a deficient number, since it is larger than the sum of its proper divisors (9176535).

20548953 is a wasteful number, since it uses less digits than its factorization.

20548953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364 (or 3361 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 20548953 is about 4533.0953001233. The cubic root of 20548953 is about 273.9028595215.

Adding to 20548953 its product of nonzero digits (43200), we get a triangular number (20592153 = T₆₄₁₇).

The spelling of 20548953 in words is "twenty million, five hundred forty-eight thousand, nine hundred fifty-three".