20003054451 has 16 divisors (see below), whose sum is σ = 27551198208. Its totient is φ = 12895768800.

The previous prime is 20003054447. The next prime is 20003054501. The reversal of 20003054451 is 15445030002.

It is not a de Polignac number, because 20003054451 - 2² = 20003054447 is a prime.

It is a super-2 number, since 2×20003054451² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20003052451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50560 + ... + 206306.

It is an arithmetic number, because the mean of its divisors is an integer number (1721949888).

Almost surely, 2^20003054451 is an apocalyptic number.

20003054451 is a deficient number, since it is larger than the sum of its proper divisors (7548143757).

20003054451 is a wasteful number, since it uses less digits than its factorization.

20003054451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157162.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 20003054451 its reverse (15445030002), we get a palindrome (35448084453).

The spelling of 20003054451 in words is "twenty billion, three million, fifty-four thousand, four hundred fifty-one".