2265057591 has 4 divisors (see below), whose sum is σ = 3020076792. Its totient is φ = 1510038392.

The previous prime is 2265057589. The next prime is 2265057593. The reversal of 2265057591 is 1957505622.

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

It is an interprime number because it is at equal distance from previous prime (2265057589) and next prime (2265057593).

It is a cyclic number.

It is not a de Polignac number, because 2265057591 - 2¹ = 2265057589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265057593) 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, 377509596 + ... + 377509601.

It is an arithmetic number, because the mean of its divisors is an integer number (755019198).

Almost surely, 2^2265057591 is an apocalyptic number.

2265057591 is a deficient number, since it is larger than the sum of its proper divisors (755019201).

2265057591 is an equidigital number, since it uses as much as digits as its factorization.

2265057591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755019200.

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 2265057591 is about 47592.6211822799. The cubic root of 2265057591 is about 1313.2873154547.

The spelling of 2265057591 in words is "two billion, two hundred sixty-five million, fifty-seven thousand, five hundred ninety-one".