52666155 has 24 divisors (see below), whose sum is σ = 91698048. Its totient is φ = 27962496.

The previous prime is 52666139. The next prime is 52666169. The reversal of 52666155 is 55166625.

It is a happy number.

It is not a de Polignac number, because 52666155 - 2⁴ = 52666139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7974 + ... + 12996.

It is an arithmetic number, because the mean of its divisors is an integer number (3820752).

Almost surely, 2^52666155 is an apocalyptic number.

52666155 is a deficient number, since it is larger than the sum of its proper divisors (39031893).

52666155 is a wasteful number, since it uses less digits than its factorization.

52666155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5267 (or 5264 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 52666155 is about 7257.1450998309. The cubic root of 52666155 is about 374.8382235524.

The spelling of 52666155 in words is "fifty-two million, six hundred sixty-six thousand, one hundred fifty-five".