45633521 has 2 divisors, whose sum is σ = 45633522. Its totient is φ = 45633520.

The previous prime is 45633509. The next prime is 45633547. The reversal of 45633521 is 12533654.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 6195121 = 6280^2 + 2489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45633521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45633571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22816760 + 22816761.

It is an arithmetic number, because the mean of its divisors is an integer number (22816761).

Almost surely, 2^45633521 is an apocalyptic number.

It is an amenable number.

45633521 is a deficient number, since it is larger than the sum of its proper divisors (1).

45633521 is an equidigital number, since it uses as much as digits as its factorization.

45633521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 29.

The square root of 45633521 is about 6755.2587663242. The cubic root of 45633521 is about 357.3507186405.

The spelling of 45633521 in words is "forty-five million, six hundred thirty-three thousand, five hundred twenty-one".