45956591 has 4 divisors (see below), whose sum is σ = 46538400. Its totient is φ = 45374784.

The previous prime is 45956579. The next prime is 45956609. The reversal of 45956591 is 19565954.

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

It is a cyclic number.

It is not a de Polignac number, because 45956591 - 2⁶ = 45956527 is a prime.

It is a super-2 number, since 2×45956591² = 4224016512682562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45956501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290786 + ... + 290943.

It is an arithmetic number, because the mean of its divisors is an integer number (11634600).

Almost surely, 2^45956591 is an apocalyptic number.

45956591 is a deficient number, since it is larger than the sum of its proper divisors (581809).

45956591 is an equidigital number, since it uses as much as digits as its factorization.

45956591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581808.

The product of its digits is 243000, while the sum is 44.

The square root of 45956591 is about 6779.1290738560. The cubic root of 45956591 is about 358.1920440031.

It can be divided in two parts, 4 and 5956591, that added together give a palindrome (5956595).

The spelling of 45956591 in words is "forty-five million, nine hundred fifty-six thousand, five hundred ninety-one".