40553503 has 4 divisors (see below), whose sum is σ = 40646320. Its totient is φ = 40460688.

The previous prime is 40553497. The next prime is 40553519. The reversal of 40553503 is 30535504.

It is a happy number.

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 40553503 - 2¹³ = 40545311 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 (40553563) 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, 45750 + ... + 46627.

It is an arithmetic number, because the mean of its divisors is an integer number (10161580).

Almost surely, 2^40553503 is an apocalyptic number.

40553503 is a deficient number, since it is larger than the sum of its proper divisors (92817).

40553503 is an equidigital number, since it uses as much as digits as its factorization.

40553503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92816.

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 40553503 is about 6368.1632359731. The cubic root of 40553503 is about 343.5654300404.

The spelling of 40553503 in words is "forty million, five hundred fifty-three thousand, five hundred three".