2154105552 has 20 divisors (see below), whose sum is σ = 5564772800. Its totient is φ = 718035168.

The previous prime is 2154105533. The next prime is 2154105607. The reversal of 2154105552 is 2555014512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22438552 + ... + 22438647.

It is an arithmetic number, because the mean of its divisors is an integer number (278238640).

Almost surely, 2^2154105552 is an apocalyptic number.

It is an amenable number.

2154105552 is an abundant number, since it is smaller than the sum of its proper divisors (3410667248).

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

2154105552 is a wasteful number, since it uses less digits than its factorization.

2154105552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44877210 (or 44877204 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 2154105552 is about 46412.3426687341. The cubic root of 2154105552 is about 1291.4838906432.

The spelling of 2154105552 in words is "two billion, one hundred fifty-four million, one hundred five thousand, five hundred fifty-two".