53250621 has 8 divisors (see below), whose sum is σ = 72165024. Its totient is φ = 34918320.

The previous prime is 53250607. The next prime is 53250623. The reversal of 53250621 is 12605235.

53250621 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 not a de Polignac number, because 53250621 - 2⁶ = 53250557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53250591 and 53250600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53250623) 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, 145311 + ... + 145676.

It is an arithmetic number, because the mean of its divisors is an integer number (9020628).

Almost surely, 2^53250621 is an apocalyptic number.

It is an amenable number.

53250621 is a deficient number, since it is larger than the sum of its proper divisors (18914403).

53250621 is a wasteful number, since it uses less digits than its factorization.

53250621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291051.

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

The square root of 53250621 is about 7297.3023097580. The cubic root of 53250621 is about 376.2197226586.

Adding to 53250621 its reverse (12605235), we get a palindrome (65855856).

The spelling of 53250621 in words is "fifty-three million, two hundred fifty thousand, six hundred twenty-one".