2801588561 has 4 divisors (see below), whose sum is σ = 2801780592. Its totient is φ = 2801396532.

The previous prime is 2801588527. The next prime is 2801588563. The reversal of 2801588561 is 1658851082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2801588561 - 2⁶ = 2801588497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2801588563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72155 + ... + 103968.

It is an arithmetic number, because the mean of its divisors is an integer number (700445148).

Almost surely, 2^2801588561 is an apocalyptic number.

It is an amenable number.

2801588561 is a deficient number, since it is larger than the sum of its proper divisors (192031).

2801588561 is a wasteful number, since it uses less digits than its factorization.

2801588561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192030.

The product of its (nonzero) digits is 153600, while the sum is 44.

The square root of 2801588561 is about 52930.0345834008. The cubic root of 2801588561 is about 1409.7262451616.

The spelling of 2801588561 in words is "two billion, eight hundred one million, five hundred eighty-eight thousand, five hundred sixty-one".