20484533 has 2 divisors, whose sum is σ = 20484534. Its totient is φ = 20484532.

The previous prime is 20484523. The next prime is 20484547. The reversal of 20484533 is 33548402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15547249 + 4937284 = 3943^2 + 2222^2 .

It is a cyclic number.

It is not a de Polignac number, because 20484533 - 2²² = 16290229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20484496 and 20484505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20484523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10242266 + 10242267.

It is an arithmetic number, because the mean of its divisors is an integer number (10242267).

Almost surely, 2^20484533 is an apocalyptic number.

It is an amenable number.

20484533 is a deficient number, since it is larger than the sum of its proper divisors (1).

20484533 is an equidigital number, since it uses as much as digits as its factorization.

20484533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 20484533 is about 4525.9842023586. The cubic root of 20484533 is about 273.6163357108.

The spelling of 20484533 in words is "twenty million, four hundred eighty-four thousand, five hundred thirty-three".