20043505452 has 24 divisors (see below), whose sum is σ = 48276831232. Its totient is φ = 6465646800.

The previous prime is 20043505451. The next prime is 20043505453. The reversal of 20043505452 is 25450534002.

It is an interprime number because it is at equal distance from previous prime (20043505451) and next prime (20043505453).

It is a super-2 number, since 2×20043505452² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20043505451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26939824 + ... + 26940567.

Almost surely, 2^20043505452 is an apocalyptic number.

It is an amenable number.

20043505452 is an abundant number, since it is smaller than the sum of its proper divisors (28233325780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20043505452 is a wasteful number, since it uses less digits than its factorization.

20043505452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53880429 (or 53880427 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 20043505452 in words is "twenty billion, forty-three million, five hundred five thousand, four hundred fifty-two".