52662661 has 4 divisors (see below), whose sum is σ = 55434400. Its totient is φ = 49890924.

The previous prime is 52662647. The next prime is 52662671. The reversal of 52662661 is 16626625.

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 a de Polignac number, because none of the positive numbers 2^k-52662661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52662611) 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, 1385841 + ... + 1385878.

It is an arithmetic number, because the mean of its divisors is an integer number (13858600).

Almost surely, 2^52662661 is an apocalyptic number.

It is an amenable number.

52662661 is a deficient number, since it is larger than the sum of its proper divisors (2771739).

52662661 is a wasteful number, since it uses less digits than its factorization.

52662661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771738.

The product of its digits is 25920, while the sum is 34.

The square root of 52662661 is about 7256.9043675661. The cubic root of 52662661 is about 374.8299341445.

The spelling of 52662661 in words is "fifty-two million, six hundred sixty-two thousand, six hundred sixty-one".