52668397 has 16 divisors (see below), whose sum is σ = 57032640. Its totient is φ = 48460032.

The previous prime is 52668373. The next prime is 52668403. The reversal of 52668397 is 79386625.

It is a cyclic number.

It is not a de Polignac number, because 52668397 - 2⁷ = 52668269 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 (52668337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229879 + ... + 230107.

It is an arithmetic number, because the mean of its divisors is an integer number (3564540).

Almost surely, 2^52668397 is an apocalyptic number.

It is an amenable number.

52668397 is a deficient number, since it is larger than the sum of its proper divisors (4364243).

52668397 is a wasteful number, since it uses less digits than its factorization.

52668397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492.

The product of its digits is 544320, while the sum is 46.

The square root of 52668397 is about 7257.2995666432. The cubic root of 52668397 is about 374.8435424355.

The spelling of 52668397 in words is "fifty-two million, six hundred sixty-eight thousand, three hundred ninety-seven".