52668487 has 2 divisors, whose sum is σ = 52668488. Its totient is φ = 52668486.

The previous prime is 52668479. The next prime is 52668547. The reversal of 52668487 is 78486625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52668487 - 2³ = 52668479 is a prime.

It is a super-3 number, since 3×52668487³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52668467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26334243 + 26334244.

It is an arithmetic number, because the mean of its divisors is an integer number (26334244).

Almost surely, 2^52668487 is an apocalyptic number.

52668487 is a deficient number, since it is larger than the sum of its proper divisors (1).

52668487 is an equidigital number, since it uses as much as digits as its factorization.

52668487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 645120, while the sum is 46.

The square root of 52668487 is about 7257.3057672941. The cubic root of 52668487 is about 374.8437559469.

The spelling of 52668487 in words is "fifty-two million, six hundred sixty-eight thousand, four hundred eighty-seven".