52946521 has 4 divisors (see below), whose sum is σ = 55733200. Its totient is φ = 50159844.

The previous prime is 52946513. The next prime is 52946557. The reversal of 52946521 is 12564925.

It is a happy number.

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 52946521 - 2³ = 52946513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52946591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393311 + ... + 1393348.

It is an arithmetic number, because the mean of its divisors is an integer number (13933300).

Almost surely, 2^52946521 is an apocalyptic number.

It is an amenable number.

52946521 is a deficient number, since it is larger than the sum of its proper divisors (2786679).

52946521 is a wasteful number, since it uses less digits than its factorization.

52946521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2786678.

The product of its digits is 21600, while the sum is 34.

The square root of 52946521 is about 7276.4360094761. The cubic root of 52946521 is about 375.5021917682.

The spelling of 52946521 in words is "fifty-two million, nine hundred forty-six thousand, five hundred twenty-one".