52662521 has 8 divisors (see below), whose sum is σ = 56236800. Its totient is φ = 49205520.

The previous prime is 52662503. The next prime is 52662527. The reversal of 52662521 is 12526625.

52662521 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 a cyclic number.

It is not a de Polignac number, because 52662521 - 2¹⁴ = 52646137 is a prime.

It is a super-2 number, since 2×52662521² = 5546682236150882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52662527) 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, 28391 + ... + 30188.

It is an arithmetic number, because the mean of its divisors is an integer number (7029600).

Almost surely, 2^52662521 is an apocalyptic number.

It is an amenable number.

52662521 is a deficient number, since it is larger than the sum of its proper divisors (3574279).

52662521 is a wasteful number, since it uses less digits than its factorization.

52662521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58639.

The product of its digits is 7200, while the sum is 29.

The square root of 52662521 is about 7256.8947215734. The cubic root of 52662521 is about 374.8296019912.

The spelling of 52662521 in words is "fifty-two million, six hundred sixty-two thousand, five hundred twenty-one".