40563541 has 4 divisors (see below), whose sum is σ = 40596300. Its totient is φ = 40530784.

The previous prime is 40563539. The next prime is 40563553. The reversal of 40563541 is 14536504.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26471025 + 14092516 = 5145^2 + 3754^2 .

It is a cyclic number.

It is not a de Polignac number, because 40563541 - 2¹ = 40563539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40563571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14446 + ... + 17023.

It is an arithmetic number, because the mean of its divisors is an integer number (10149075).

Almost surely, 2^40563541 is an apocalyptic number.

It is an amenable number.

40563541 is a deficient number, since it is larger than the sum of its proper divisors (32759).

40563541 is a wasteful number, since it uses less digits than its factorization.

40563541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32758.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 40563541 is about 6368.9513265529. The cubic root of 40563541 is about 343.5937746964.

The spelling of 40563541 in words is "forty million, five hundred sixty-three thousand, five hundred forty-one".