52053621 has 4 divisors (see below), whose sum is σ = 69404832. Its totient is φ = 34702412.

The previous prime is 52053613. The next prime is 52053649. The reversal of 52053621 is 12635025.

52053621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52053621 - 2³ = 52053613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52053591 and 52053600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52053601) 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 3 ways as a sum of consecutive naturals, for example, 8675601 + ... + 8675606.

It is an arithmetic number, because the mean of its divisors is an integer number (17351208).

Almost surely, 2^52053621 is an apocalyptic number.

It is an amenable number.

52053621 is a deficient number, since it is larger than the sum of its proper divisors (17351211).

52053621 is a wasteful number, since it uses less digits than its factorization.

52053621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17351210.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 52053621 is about 7214.8195403627. The cubic root of 52053621 is about 373.3793671092.

Adding to 52053621 its reverse (12635025), we get a palindrome (64688646).

The spelling of 52053621 in words is "fifty-two million, fifty-three thousand, six hundred twenty-one".