53988623 has 4 divisors (see below), whose sum is σ = 58141608. Its totient is φ = 49835640.

The previous prime is 53988611. The next prime is 53988631. The reversal of 53988623 is 32688935.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32688935 = 5 ⋅6537787.

It is a cyclic number.

It is not a de Polignac number, because 53988623 - 2⁶ = 53988559 is a prime.

It is a super-2 number, since 2×53988623² = 5829542826872258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53988673) 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, 2076473 + ... + 2076498.

It is an arithmetic number, because the mean of its divisors is an integer number (14535402).

Almost surely, 2^53988623 is an apocalyptic number.

53988623 is a deficient number, since it is larger than the sum of its proper divisors (4152985).

53988623 is a wasteful number, since it uses less digits than its factorization.

53988623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152984.

The product of its digits is 311040, while the sum is 44.

The square root of 53988623 is about 7347.6950807719. The cubic root of 53988623 is about 377.9497684341.

It can be divided in two parts, 5398862 and 3, that multiplied together give a triangular number (16196586 = T₅₆₉₁).

The spelling of 53988623 in words is "fifty-three million, nine hundred eighty-eight thousand, six hundred twenty-three".