2154550104 has 160 divisors (see below), whose sum is σ = 6921684000. Its totient is φ = 613370880.

The previous prime is 2154550103. The next prime is 2154550109. The reversal of 2154550104 is 4010554512.

2154550104 is a `hidden beast` number, since 2 + 1 + 5 + 4 + 550 + 104 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154550103) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1582384 + ... + 1583744.

It is an arithmetic number, because the mean of its divisors is an integer number (43260525).

Almost surely, 2^2154550104 is an apocalyptic number.

2154550104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154550104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3460842000).

2154550104 is an abundant number, since it is smaller than the sum of its proper divisors (4767133896).

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

2154550104 is a wasteful number, since it uses less digits than its factorization.

2154550104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2154550104 is about 46417.1315787609. The cubic root of 2154550104 is about 1291.5727275551.

The spelling of 2154550104 in words is "two billion, one hundred fifty-four million, five hundred fifty thousand, one hundred four".