40013553 has 8 divisors (see below), whose sum is σ = 53994528. Its totient is φ = 26354144.

The previous prime is 40013551. The next prime is 40013593. The reversal of 40013553 is 35531004.

40013553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40013553 - 2¹ = 40013551 is a prime.

It is a super-3 number, since 3×40013553³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40013551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80100 + ... + 80597.

It is an arithmetic number, because the mean of its divisors is an integer number (6749316).

Almost surely, 2^40013553 is an apocalyptic number.

It is an amenable number.

40013553 is a deficient number, since it is larger than the sum of its proper divisors (13980975).

40013553 is a wasteful number, since it uses less digits than its factorization.

40013553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160783.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 40013553 is about 6325.6266883211. The cubic root of 40013553 is about 342.0338104804.

Adding to 40013553 its reverse (35531004), we get a palindrome (75544557).

The spelling of 40013553 in words is "forty million, thirteen thousand, five hundred fifty-three".