20034855531 has 6 divisors (see below), whose sum is σ = 28939235780. Its totient is φ = 13356570348.

The previous prime is 20034855527. The next prime is 20034855541. The reversal of 20034855531 is 13555843002.

20034855531 is a `hidden beast` number, since 20 + 0 + 3 + 4 + 85 + 553 + 1 = 666.

It is not a de Polignac number, because 20034855531 - 2² = 20034855527 is a prime.

It is a super-2 number, since 2×20034855531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20034855541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1113047521 + ... + 1113047538.

Almost surely, 2^20034855531 is an apocalyptic number.

20034855531 is a deficient number, since it is larger than the sum of its proper divisors (8904380249).

20034855531 is a wasteful number, since it uses less digits than its factorization.

20034855531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226095065 (or 2226095062 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 20034855531 in words is "twenty billion, thirty-four million, eight hundred fifty-five thousand, five hundred thirty-one".