53155403 has 4 divisors (see below), whose sum is σ = 60749040. Its totient is φ = 45561768.

The previous prime is 53155397. The next prime is 53155423. The reversal of 53155403 is 30455135.

53155403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30455135 = 5 ⋅6091027.

It is not a de Polignac number, because 53155403 - 2¹⁰ = 53154379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53155423) 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 3 ways as a sum of consecutive naturals, for example, 3796808 + ... + 3796821.

It is an arithmetic number, because the mean of its divisors is an integer number (15187260).

Almost surely, 2^53155403 is an apocalyptic number.

53155403 is a deficient number, since it is larger than the sum of its proper divisors (7593637).

53155403 is an equidigital number, since it uses as much as digits as its factorization.

53155403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593636.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 53155403 is about 7290.7751988386. The cubic root of 53155403 is about 375.9953480449.

The spelling of 53155403 in words is "fifty-three million, one hundred fifty-five thousand, four hundred three".