2152748556 has 144 divisors (see below), whose sum is σ = 6874610400. Its totient is φ = 578866176.

The previous prime is 2152748537. The next prime is 2152748569. The reversal of 2152748556 is 6558472512.

2152748556 is a `hidden beast` number, since 2 + 1 + 52 + 7 + 48 + 556 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78000 + ... + 101928.

It is an arithmetic number, because the mean of its divisors is an integer number (47740350).

Almost surely, 2^2152748556 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 2152748556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3437305200).

2152748556 is an abundant number, since it is smaller than the sum of its proper divisors (4721861844).

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

2152748556 is a wasteful number, since it uses less digits than its factorization.

2152748556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23973 (or 23958 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 2152748556 is about 46397.7214526748. The cubic root of 2152748556 is about 1291.2126401452.

The spelling of 2152748556 in words is "two billion, one hundred fifty-two million, seven hundred forty-eight thousand, five hundred fifty-six".