53623903 has 4 divisors (see below), whose sum is σ = 53953048. Its totient is φ = 53294760.

The previous prime is 53623897. The next prime is 53623907. The reversal of 53623903 is 30932635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30932635 = 5 ⋅6186527.

It is a cyclic number.

It is not a de Polignac number, because 53623903 - 2²¹ = 51526751 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 (53623907) 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, 164328 + ... + 164653.

It is an arithmetic number, because the mean of its divisors is an integer number (13488262).

Almost surely, 2^53623903 is an apocalyptic number.

53623903 is a deficient number, since it is larger than the sum of its proper divisors (329145).

53623903 is a wasteful number, since it uses less digits than its factorization.

53623903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329144.

The product of its (nonzero) digits is 14580, while the sum is 31.

The square root of 53623903 is about 7322.8343556303. The cubic root of 53623903 is about 377.0967651663.

The spelling of 53623903 in words is "fifty-three million, six hundred twenty-three thousand, nine hundred three".