40103553 has 16 divisors (see below), whose sum is σ = 63082496. Its totient is φ = 22176720.

The previous prime is 40103551. The next prime is 40103573. The reversal of 40103553 is 35530104.

40103553 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40103553 - 2¹ = 40103551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40103551) 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 15 ways as a sum of consecutive naturals, for example, 30151 + ... + 31452.

It is an arithmetic number, because the mean of its divisors is an integer number (3942656).

Almost surely, 2^40103553 is an apocalyptic number.

It is an amenable number.

40103553 is a deficient number, since it is larger than the sum of its proper divisors (22978943).

40103553 is a wasteful number, since it uses less digits than its factorization.

40103553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61644.

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

The square root of 40103553 is about 6332.7366122396. The cubic root of 40103553 is about 342.2900569267.

Adding to 40103553 its reverse (35530104), we get a palindrome (75633657).

The spelling of 40103553 in words is "forty million, one hundred three thousand, five hundred fifty-three".