2561572652 has 12 divisors (see below), whose sum is σ = 4677654576. Its totient is φ = 1225099920.

The previous prime is 2561572589. The next prime is 2561572667. The reversal of 2561572652 is 2562751652.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13921499 + ... + 13921682.

It is an arithmetic number, because the mean of its divisors is an integer number (389804548).

Almost surely, 2^2561572652 is an apocalyptic number.

It is an amenable number.

2561572652 is a deficient number, since it is larger than the sum of its proper divisors (2116081924).

2561572652 is a wasteful number, since it uses less digits than its factorization.

2561572652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27843208 (or 27843206 counting only the distinct ones).

The product of its digits is 252000, while the sum is 41.

The square root of 2561572652 is about 50611.9813087771. The cubic root of 2561572652 is about 1368.2608246963.

The spelling of 2561572652 in words is "two billion, five hundred sixty-one million, five hundred seventy-two thousand, six hundred fifty-two".