45825375581 has 4 divisors (see below), whose sum is σ = 45893467452. Its totient is φ = 45757283712.

The previous prime is 45825375571. The next prime is 45825375599. The reversal of 45825375581 is 18557352854.

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 8867235556 + 36958140025 = 94166^2 + 192245^2 .

It is a cyclic number.

It is not a de Polignac number, because 45825375581 - 2¹⁸ = 45825113437 is a prime.

It is a super-2 number, since 2×45825375581² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45825375521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34044926 + ... + 34046271.

It is an arithmetic number, because the mean of its divisors is an integer number (11473366863).

Almost surely, 2^45825375581 is an apocalyptic number.

It is an amenable number.

45825375581 is a deficient number, since it is larger than the sum of its proper divisors (68091871).

45825375581 is an equidigital number, since it uses as much as digits as its factorization.

45825375581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68091870.

The product of its digits is 6720000, while the sum is 53.

The spelling of 45825375581 in words is "forty-five billion, eight hundred twenty-five million, three hundred seventy-five thousand, five hundred eighty-one".