53513220403 has 4 divisors (see below), whose sum is σ = 53514351000. Its totient is φ = 53512089808.

The previous prime is 53513220373. The next prime is 53513220413. The reversal of 53513220403 is 30402231535.

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 53513220403 - 2¹³ = 53513212211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53513220413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491050 + ... + 590047.

It is an arithmetic number, because the mean of its divisors is an integer number (13378587750).

Almost surely, 2^53513220403 is an apocalyptic number.

53513220403 is a deficient number, since it is larger than the sum of its proper divisors (1130597).

53513220403 is a wasteful number, since it uses less digits than its factorization.

53513220403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130596.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 53513220403 its reverse (30402231535), we get a palindrome (83915451938).

The spelling of 53513220403 in words is "fifty-three billion, five hundred thirteen million, two hundred twenty thousand, four hundred three".