2267596561 has 4 divisors (see below), whose sum is σ = 2400984612. Its totient is φ = 2134208512.

The previous prime is 2267596559. The next prime is 2267596571. The reversal of 2267596561 is 1656957622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 782264961 + 1485331600 = 27969^2 + 38540^2 .

It is a cyclic number.

It is not a de Polignac number, because 2267596561 - 2¹ = 2267596559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2267596511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66694000 + ... + 66694033.

It is an arithmetic number, because the mean of its divisors is an integer number (600246153).

Almost surely, 2^2267596561 is an apocalyptic number.

It is an amenable number.

2267596561 is a deficient number, since it is larger than the sum of its proper divisors (133388051).

2267596561 is a wasteful number, since it uses less digits than its factorization.

2267596561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133388050.

The product of its digits is 1360800, while the sum is 49.

The square root of 2267596561 is about 47619.2876994186. The cubic root of 2267596561 is about 1313.7778330776. Note that the first 3 decimals are identical.

The spelling of 2267596561 in words is "two billion, two hundred sixty-seven million, five hundred ninety-six thousand, five hundred sixty-one".