40552663 has 4 divisors (see below), whose sum is σ = 40644648. Its totient is φ = 40460680.

The previous prime is 40552661. The next prime is 40552691. The reversal of 40552663 is 36625504.

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 40552663 - 2¹ = 40552661 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40552661) 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, 45328 + ... + 46213.

It is an arithmetic number, because the mean of its divisors is an integer number (10161162).

Almost surely, 2^40552663 is an apocalyptic number.

40552663 is a deficient number, since it is larger than the sum of its proper divisors (91985).

40552663 is an equidigital number, since it uses as much as digits as its factorization.

40552663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91984.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 40552663 is about 6368.0972825484. The cubic root of 40552663 is about 343.5630578906.

The spelling of 40552663 in words is "forty million, five hundred fifty-two thousand, six hundred sixty-three".