52463021 has 4 divisors (see below), whose sum is σ = 56498652. Its totient is φ = 48427392.

The previous prime is 52462973. The next prime is 52463027. The reversal of 52463021 is 12036425.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25110121 + 27352900 = 5011^2 + 5230^2 .

It is a de Polignac number, because none of the positive numbers 2^k-52463021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52463027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2017796 + ... + 2017821.

It is an arithmetic number, because the mean of its divisors is an integer number (14124663).

Almost surely, 2^52463021 is an apocalyptic number.

It is an amenable number.

52463021 is a deficient number, since it is larger than the sum of its proper divisors (4035631).

52463021 is a wasteful number, since it uses less digits than its factorization.

52463021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4035630.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 52463021 is about 7243.1361301580. The cubic root of 52463021 is about 374.3556841046.

Adding to 52463021 its reverse (12036425), we get a palindrome (64499446).

The spelling of 52463021 in words is "fifty-two million, four hundred sixty-three thousand, twenty-one".