2265320542 has 4 divisors (see below), whose sum is σ = 3397980816. Its totient is φ = 1132660270.

The previous prime is 2265320537. The next prime is 2265320549. The reversal of 2265320542 is 2450235622.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265320549) 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 as a sum of consecutive naturals, namely, 566330134 + ... + 566330137.

It is an arithmetic number, because the mean of its divisors is an integer number (849495204).

Almost surely, 2^2265320542 is an apocalyptic number.

2265320542 is a deficient number, since it is larger than the sum of its proper divisors (1132660274).

2265320542 is a wasteful number, since it uses less digits than its factorization.

2265320542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132660273.

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 2265320542 is about 47595.3836206832. The cubic root of 2265320542 is about 1313.3381334194.

The spelling of 2265320542 in words is "two billion, two hundred sixty-five million, three hundred twenty thousand, five hundred forty-two".