53616623 has 4 divisors (see below), whose sum is σ = 56770560. Its totient is φ = 50462688.

The previous prime is 53616617. The next prime is 53616637. The reversal of 53616623 is 32661635.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32661635 = 5 ⋅6532327.

It is a cyclic number.

It is not a de Polignac number, because 53616623 - 2¹⁶ = 53551087 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 53616623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53616223) 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, 1576943 + ... + 1576976.

It is an arithmetic number, because the mean of its divisors is an integer number (14192640).

Almost surely, 2^53616623 is an apocalyptic number.

53616623 is a deficient number, since it is larger than the sum of its proper divisors (3153937).

53616623 is a wasteful number, since it uses less digits than its factorization.

53616623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153936.

The product of its digits is 19440, while the sum is 32.

The square root of 53616623 is about 7322.3372634699. The cubic root of 53616623 is about 377.0796994640.

The spelling of 53616623 in words is "fifty-three million, six hundred sixteen thousand, six hundred twenty-three".