2221025652 has 36 divisors (see below), whose sum is σ = 5615702820. Its totient is φ = 740151552.

The previous prime is 2221025641. The next prime is 2221025687. The reversal of 2221025652 is 2565201222.

2221025652 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 0 + 2 + 5 + 652 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1458934416 + 762091236 = 38196^2 + 27606^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241474 + ... + 250502.

It is an arithmetic number, because the mean of its divisors is an integer number (155991745).

Almost surely, 2^2221025652 is an apocalyptic number.

It is an amenable number.

2221025652 is an abundant number, since it is smaller than the sum of its proper divisors (3394677168).

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

2221025652 is a wasteful number, since it uses less digits than its factorization.

2221025652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15872 (or 15867 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2221025652 is about 47127.7588264072. The cubic root of 2221025652 is about 1304.7216176356.

Adding to 2221025652 its reverse (2565201222), we get a palindrome (4786226874).

The spelling of 2221025652 in words is "two billion, two hundred twenty-one million, twenty-five thousand, six hundred fifty-two".