53040621 has 8 divisors (see below), whose sum is σ = 71717184. Its totient is φ = 34862240.

The previous prime is 53040619. The next prime is 53040641. The reversal of 53040621 is 12604035.

It is a happy number.

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 53040621 - 2¹ = 53040619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53040601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124296 + ... + 124721.

It is an arithmetic number, because the mean of its divisors is an integer number (8964648).

Almost surely, 2^53040621 is an apocalyptic number.

It is an amenable number.

53040621 is a deficient number, since it is larger than the sum of its proper divisors (18676563).

53040621 is a wasteful number, since it uses less digits than its factorization.

53040621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249091.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 53040621 is about 7282.8992166582. The cubic root of 53040621 is about 375.7245157481.

Adding to 53040621 its reverse (12604035), we get a palindrome (65644656).

The spelling of 53040621 in words is "fifty-three million, forty thousand, six hundred twenty-one".