53817903 has 12 divisors (see below), whose sum is σ = 82309968. Its totient is φ = 33768000.

The previous prime is 53817893. The next prime is 53817913. The reversal of 53817903 is 30971835.

It is an interprime number because it is at equal distance from previous prime (53817893) and next prime (53817913).

It is not a de Polignac number, because 53817903 - 2⁴ = 53817887 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53817913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175723 + ... + 176028.

It is an arithmetic number, because the mean of its divisors is an integer number (6859164).

Almost surely, 2^53817903 is an apocalyptic number.

53817903 is a deficient number, since it is larger than the sum of its proper divisors (28492065).

53817903 is a wasteful number, since it uses less digits than its factorization.

53817903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351774 (or 351771 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 53817903 is about 7336.0686338120. The cubic root of 53817903 is about 377.5509701216.

The spelling of 53817903 in words is "fifty-three million, eight hundred seventeen thousand, nine hundred three".