2154055520 has 48 divisors (see below), whose sum is σ = 5136557328. Its totient is φ = 853562880.

The previous prime is 2154055511. The next prime is 2154055531. The reversal of 2154055520 is 255504512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45791 + ... + 80030.

It is an arithmetic number, because the mean of its divisors is an integer number (107011611).

Almost surely, 2^2154055520 is an apocalyptic number.

2154055520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2154055520 is an abundant number, since it is smaller than the sum of its proper divisors (2982501808).

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

2154055520 is a wasteful number, since it uses less digits than its factorization.

2154055520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125943 (or 125935 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 2154055520 is about 46411.8036710490. The cubic root of 2154055520 is about 1291.4738917487.

The spelling of 2154055520 in words is "two billion, one hundred fifty-four million, fifty-five thousand, five hundred twenty".