2153015552 has 54 divisors (see below), whose sum is σ = 4535910918. Its totient is φ = 1019805696.

The previous prime is 2153015509. The next prime is 2153015569. The reversal of 2153015552 is 2555103512.

It can be written as a sum of positive squares in only one way, i.e., 1420988416 + 732027136 = 37696^2 + 27056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80768 + ... + 104064.

Almost surely, 2^2153015552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2153015552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2267955459).

2153015552 is an abundant number, since it is smaller than the sum of its proper divisors (2382895366).

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

2153015552 is an equidigital number, since it uses as much as digits as its factorization.

2153015552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23351 (or 23318 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 2153015552 is about 46400.5986168282. The cubic root of 2153015552 is about 1291.2660190930.

The spelling of 2153015552 in words is "two billion, one hundred fifty-three million, fifteen thousand, five hundred fifty-two".