53908503 has 16 divisors (see below), whose sum is σ = 78816000. Its totient is φ = 32503680.

The previous prime is 53908499. The next prime is 53908531. The reversal of 53908503 is 30580935.

53908503 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 53908503 - 2² = 53908499 is a prime.

It is a super-2 number, since 2×53908503² = 5812253391402018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53908553) 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, 2463 + ... + 10671.

It is an arithmetic number, because the mean of its divisors is an integer number (4926000).

Almost surely, 2^53908503 is an apocalyptic number.

53908503 is a deficient number, since it is larger than the sum of its proper divisors (24907497).

53908503 is a wasteful number, since it uses less digits than its factorization.

53908503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8422.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 53908503 is about 7342.2410066682. The cubic root of 53908503 is about 377.7627146596.

Adding to 53908503 its sum of digits (33), we get a triangular number (53908536 = T₁₀₃₈₃).

The spelling of 53908503 in words is "fifty-three million, nine hundred eight thousand, five hundred three".