2458385561 has 4 divisors (see below), whose sum is σ = 2524828452. Its totient is φ = 2391942672.

The previous prime is 2458385539. The next prime is 2458385597. The reversal of 2458385561 is 1655838542.

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 1877575561 + 580810000 = 43331^2 + 24100^2 .

It is a cyclic number.

It is not a de Polignac number, because 2458385561 - 2⁶ = 2458385497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2458385161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33221390 + ... + 33221463.

It is an arithmetic number, because the mean of its divisors is an integer number (631207113).

Almost surely, 2^2458385561 is an apocalyptic number.

It is an amenable number.

2458385561 is a deficient number, since it is larger than the sum of its proper divisors (66442891).

2458385561 is an equidigital number, since it uses as much as digits as its factorization.

2458385561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66442890.

The product of its digits is 1152000, while the sum is 47.

The square root of 2458385561 is about 49582.1092834906. The cubic root of 2458385561 is about 1349.6360355820.

The spelling of 2458385561 in words is "two billion, four hundred fifty-eight million, three hundred eighty-five thousand, five hundred sixty-one".