53435903 has 4 divisors (see below), whose sum is σ = 53507808. Its totient is φ = 53364000.

The previous prime is 53435897. The next prime is 53435911. The reversal of 53435903 is 30953435.

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 53435903 - 2⁶ = 53435839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53435903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53435933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34826 + ... + 36327.

It is an arithmetic number, because the mean of its divisors is an integer number (13376952).

Almost surely, 2^53435903 is an apocalyptic number.

53435903 is a deficient number, since it is larger than the sum of its proper divisors (71905).

53435903 is an equidigital number, since it uses as much as digits as its factorization.

53435903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71904.

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 53435903 is about 7309.9865252954. The cubic root of 53435903 is about 376.6555614063.

The spelling of 53435903 in words is "fifty-three million, four hundred thirty-five thousand, nine hundred three".