403540053 has 16 divisors (see below), whose sum is σ = 616642560. Its totient is φ = 229947696.

The previous prime is 403540021. The next prime is 403540061. The reversal of 403540053 is 350045304.

It is a happy number.

It is not a de Polignac number, because 403540053 - 2⁵ = 403540021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403540013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19225 + ... + 34302.

It is an arithmetic number, because the mean of its divisors is an integer number (38540160).

Almost surely, 2^403540053 is an apocalyptic number.

It is an amenable number.

403540053 is a deficient number, since it is larger than the sum of its proper divisors (213102507).

403540053 is a wasteful number, since it uses less digits than its factorization.

403540053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53896.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 403540053 is about 20088.3063746051. The cubic root of 403540053 is about 738.9735299483.

Adding to 403540053 its reverse (350045304), we get a palindrome (753585357).

The spelling of 403540053 in words is "four hundred three million, five hundred forty thousand, fifty-three".