2123601552 has 30 divisors (see below), whose sum is σ = 5943135302. Its totient is φ = 707867136.

The previous prime is 2123601541. The next prime is 2123601577. The reversal of 2123601552 is 2551063212.

It is a happy number.

2123601552 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 601 + 5 + 52 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1925805456 + 197796096 = 43884^2 + 14064^2 .

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, 7373473 + ... + 7373760.

Almost surely, 2^2123601552 is an apocalyptic number.

It is an amenable number.

2123601552 is an abundant number, since it is smaller than the sum of its proper divisors (3819533750).

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

2123601552 is a wasteful number, since it uses less digits than its factorization.

2123601552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14747247 (or 14747238 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 2123601552 is about 46082.5514918608. The cubic root of 2123601552 is about 1285.3587096289.

Adding to 2123601552 its reverse (2551063212), we get a palindrome (4674664764).

The spelling of 2123601552 in words is "two billion, one hundred twenty-three million, six hundred one thousand, five hundred fifty-two".