40516573 has 2 divisors, whose sum is σ = 40516574. Its totient is φ = 40516572.

The previous prime is 40516571. The next prime is 40516577. The reversal of 40516573 is 37561504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32970564 + 7546009 = 5742^2 + 2747^2 .

It is a cyclic number.

It is not a de Polignac number, because 40516573 - 2¹ = 40516571 is a prime.

Together with 40516571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40516571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20258286 + 20258287.

It is an arithmetic number, because the mean of its divisors is an integer number (20258287).

Almost surely, 2^40516573 is an apocalyptic number.

It is an amenable number.

40516573 is a deficient number, since it is larger than the sum of its proper divisors (1).

40516573 is an equidigital number, since it uses as much as digits as its factorization.

40516573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 40516573 is about 6365.2629953522. The cubic root of 40516573 is about 343.4611092153.

The spelling of 40516573 in words is "forty million, five hundred sixteen thousand, five hundred seventy-three".