40563513 has 24 divisors (see below), whose sum is σ = 64741248. Its totient is φ = 24342912.

The previous prime is 40563493. The next prime is 40563517. The reversal of 40563513 is 31536504.

It is not a de Polignac number, because 40563513 - 2⁶ = 40563449 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40563517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2245 + ... + 9282.

It is an arithmetic number, because the mean of its divisors is an integer number (2697552).

Almost surely, 2^40563513 is an apocalyptic number.

It is an amenable number.

40563513 is a deficient number, since it is larger than the sum of its proper divisors (24177735).

40563513 is a wasteful number, since it uses less digits than its factorization.

40563513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11573 (or 11570 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 40563513 is about 6368.9491283885. The cubic root of 40563513 is about 343.5936956383.

It can be divided in two parts, 4056 and 3513, that added together give a square (7569 = 87²).

The spelling of 40563513 in words is "forty million, five hundred sixty-three thousand, five hundred thirteen".