2153602564 has 6 divisors (see below), whose sum is σ = 3768804494. Its totient is φ = 1076801280.

The previous prime is 2153602559. The next prime is 2153602571. The reversal of 2153602564 is 4652063512.

It can be written as a sum of positive squares in only one way, i.e., 1835265600 + 318336964 = 42840^2 + 17842^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269200317 + ... + 269200324.

Almost surely, 2^2153602564 is an apocalyptic number.

It is an amenable number.

2153602564 is a deficient number, since it is larger than the sum of its proper divisors (1615201930).

2153602564 is a wasteful number, since it uses less digits than its factorization.

2153602564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538400645 (or 538400643 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2153602564 is about 46406.9236644706. The cubic root of 2153602564 is about 1291.3833614520.

The spelling of 2153602564 in words is "two billion, one hundred fifty-three million, six hundred two thousand, five hundred sixty-four".