20054415540 has 48 divisors (see below), whose sum is σ = 56446387200. Its totient is φ = 5319841920.

The previous prime is 20054415529. The next prime is 20054415581. The reversal of 20054415540 is 4551445002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 20054415498 and 20054415507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 863515 + ... + 886434.

It is an arithmetic number, because the mean of its divisors is an integer number (1175966400).

Almost surely, 2^20054415540 is an apocalyptic number.

20054415540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20054415540 is an abundant number, since it is smaller than the sum of its proper divisors (36391971660).

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

20054415540 is a wasteful number, since it uses less digits than its factorization.

20054415540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750152 (or 1750150 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 20054415540 in words is "twenty billion, fifty-four million, four hundred fifteen thousand, five hundred forty".