20001254355 has 48 divisors (see below), whose sum is σ = 35089778880. Its totient is φ = 10538035200.

The previous prime is 20001254347. The next prime is 20001254369. The reversal of 20001254355 is 55345210002.

It is a happy number.

20001254355 is a `hidden beast` number, since 200 + 0 + 1 + 25 + 435 + 5 = 666.

It is not a de Polignac number, because 20001254355 - 2³ = 20001254347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8653650 + ... + 8655960.

It is an arithmetic number, because the mean of its divisors is an integer number (731037060).

Almost surely, 2^20001254355 is an apocalyptic number.

20001254355 is a deficient number, since it is larger than the sum of its proper divisors (15088524525).

20001254355 is a wasteful number, since it uses less digits than its factorization.

20001254355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572 (or 4569 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 20001254355 its reverse (55345210002), we get a palindrome (75346464357).

The spelling of 20001254355 in words is "twenty billion, one million, two hundred fifty-four thousand, three hundred fifty-five".