2152505644 has 6 divisors (see below), whose sum is σ = 3766884884. Its totient is φ = 1076252820.

The previous prime is 2152505591. The next prime is 2152505659. The reversal of 2152505644 is 4465052512.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269063202 + ... + 269063209.

Almost surely, 2^2152505644 is an apocalyptic number.

It is an amenable number.

2152505644 is a deficient number, since it is larger than the sum of its proper divisors (1614379240).

2152505644 is a wasteful number, since it uses less digits than its factorization.

2152505644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538126415 (or 538126413 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 2152505644 is about 46395.1036640721. The cubic root of 2152505644 is about 1291.1640723361.

The spelling of 2152505644 in words is "two billion, one hundred fifty-two million, five hundred five thousand, six hundred forty-four".