220505535 has 12 divisors (see below), whose sum is σ = 382209672. Its totient is φ = 117602928.

The previous prime is 220505447. The next prime is 220505543. The reversal of 220505535 is 535505022.

It is not a de Polignac number, because 220505535 - 2⁷ = 220505407 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

220505535 is a modest number, since divided by 5535 gives 2205 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 220505499 and 220505508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2450017 + ... + 2450106.

It is an arithmetic number, because the mean of its divisors is an integer number (31850806).

Almost surely, 2^220505535 is an apocalyptic number.

220505535 is a deficient number, since it is larger than the sum of its proper divisors (161704137).

220505535 is a wasteful number, since it uses less digits than its factorization.

220505535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900134 (or 4900131 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 220505535 is about 14849.4287768924. The cubic root of 220505535 is about 604.1431167885.

The spelling of 220505535 in words is "two hundred twenty million, five hundred five thousand, five hundred thirty-five".