52263621 has 6 divisors (see below), whose sum is σ = 75491910. Its totient is φ = 34842408.

The previous prime is 52263599. The next prime is 52263637. The reversal of 52263621 is 12636225.

52263621 is a `hidden beast` number, since 5 + 2 + 2 + 636 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30305025 + 21958596 = 5505^2 + 4686^2 .

It is not a de Polignac number, because 52263621 - 2⁷ = 52263493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52263691) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2903526 + ... + 2903543.

It is an arithmetic number, because the mean of its divisors is an integer number (12581985).

Almost surely, 2^52263621 is an apocalyptic number.

It is an amenable number.

52263621 is a deficient number, since it is larger than the sum of its proper divisors (23228289).

52263621 is a wasteful number, since it uses less digits than its factorization.

52263621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5807075 (or 5807072 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 52263621 is about 7229.3582702754. The cubic root of 52263621 is about 373.8808017102.

Adding to 52263621 its reverse (12636225), we get a palindrome (64899846).

The spelling of 52263621 in words is "fifty-two million, two hundred sixty-three thousand, six hundred twenty-one".