20258804535 has 32 divisors (see below), whose sum is σ = 33366271680. Its totient is φ = 10491506688.

The previous prime is 20258804459. The next prime is 20258804563. The reversal of 20258804535 is 53540885202.

It is a happy number.

It is not a de Polignac number, because 20258804535 - 2⁷ = 20258804407 is a prime.

It is a super-2 number, since 2×20258804535² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54240 + ... + 208469.

It is an arithmetic number, because the mean of its divisors is an integer number (1042695990).

Almost surely, 2^20258804535 is an apocalyptic number.

20258804535 is a deficient number, since it is larger than the sum of its proper divisors (13107467145).

20258804535 is a wasteful number, since it uses less digits than its factorization.

20258804535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262867.

The product of its (nonzero) digits is 384000, while the sum is 42.

The spelling of 20258804535 in words is "twenty billion, two hundred fifty-eight million, eight hundred four thousand, five hundred thirty-five".