45825591 has 32 divisors (see below), whose sum is σ = 77165568. Its totient is φ = 23569920.

The previous prime is 45825589. The next prime is 45825599. The reversal of 45825591 is 19552854.

It is not a de Polignac number, because 45825591 - 2¹ = 45825589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45825599) 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 31 ways as a sum of consecutive naturals, for example, 5421 + ... + 11001.

It is an arithmetic number, because the mean of its divisors is an integer number (2411424).

Almost surely, 2^45825591 is an apocalyptic number.

45825591 is a deficient number, since it is larger than the sum of its proper divisors (31339977).

45825591 is a wasteful number, since it uses less digits than its factorization.

45825591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5631.

The product of its digits is 72000, while the sum is 39.

The square root of 45825591 is about 6769.4601705010. The cubic root of 45825591 is about 357.8513760484.

The spelling of 45825591 in words is "forty-five million, eight hundred twenty-five thousand, five hundred ninety-one".