2180731552 has 12 divisors (see below), whose sum is σ = 4293315306. Its totient is φ = 1090365760.

The previous prime is 2180731543. The next prime is 2180731561. The reversal of 2180731552 is 2551370812.

It is an interprime number because it is at equal distance from previous prime (2180731543) and next prime (2180731561).

It can be written as a sum of positive squares in only one way, i.e., 1967454736 + 213276816 = 44356^2 + 14604^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34073899 + ... + 34073962.

Almost surely, 2^2180731552 is an apocalyptic number.

It is an amenable number.

2180731552 is a deficient number, since it is larger than the sum of its proper divisors (2112583754).

2180731552 is an equidigital number, since it uses as much as digits as its factorization.

2180731552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68147871 (or 68147863 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 2180731552 is about 46698.3035237898. The cubic root of 2180731552 is about 1296.7832802503.

The spelling of 2180731552 in words is "two billion, one hundred eighty million, seven hundred thirty-one thousand, five hundred fifty-two".