53023661 has 8 divisors (see below), whose sum is σ = 57002880. Its totient is φ = 49163328.

The previous prime is 53023603. The next prime is 53023681. The reversal of 53023661 is 16632035.

53023661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53023661 - 2¹⁰ = 53022637 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 53023661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53023681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28796 + ... + 30581.

It is an arithmetic number, because the mean of its divisors is an integer number (7125360).

Almost surely, 2^53023661 is an apocalyptic number.

It is an amenable number.

53023661 is a deficient number, since it is larger than the sum of its proper divisors (3979219).

53023661 is a wasteful number, since it uses less digits than its factorization.

53023661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59443.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 53023661 is about 7281.7347521041. The cubic root of 53023661 is about 375.6844648904.

Adding to 53023661 its reverse (16632035), we get a palindrome (69655696).

The spelling of 53023661 in words is "fifty-three million, twenty-three thousand, six hundred sixty-one".