53453503 has 4 divisors (see below), whose sum is σ = 53484088. Its totient is φ = 53422920.

The previous prime is 53453497. The next prime is 53453509. The reversal of 53453503 is 30535435.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (53453497) and next prime (53453509).

It is a cyclic number.

It is not a de Polignac number, because 53453503 - 2¹⁷ = 53322431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53453509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12501 + ... + 16222.

It is an arithmetic number, because the mean of its divisors is an integer number (13371022).

Almost surely, 2^53453503 is an apocalyptic number.

53453503 is a deficient number, since it is larger than the sum of its proper divisors (30585).

53453503 is a wasteful number, since it uses less digits than its factorization.

53453503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30584.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 53453503 is about 7311.1902587746. The cubic root of 53453503 is about 376.6969094503.

Adding to 53453503 its reverse (30535435), we get a palindrome (83988938).

It can be divided in two parts, 53453 and 503, that added together give a triangular number (53956 = T₃₂₈).

The spelling of 53453503 in words is "fifty-three million, four hundred fifty-three thousand, five hundred three".