52666407 has 12 divisors (see below), whose sum is σ = 78697320. Its totient is φ = 33900048.

The previous prime is 52666399. The next prime is 52666421. The reversal of 52666407 is 70466625.

It is not a de Polignac number, because 52666407 - 2³ = 52666399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52666487) 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 11 ways as a sum of consecutive naturals, for example, 100633 + ... + 101154.

It is an arithmetic number, because the mean of its divisors is an integer number (6558110).

Almost surely, 2^52666407 is an apocalyptic number.

52666407 is a deficient number, since it is larger than the sum of its proper divisors (26030913).

52666407 is a wasteful number, since it uses less digits than its factorization.

52666407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201822 (or 201819 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 52666407 is about 7257.1624620095. The cubic root of 52666407 is about 374.8388214005.

The spelling of 52666407 in words is "fifty-two million, six hundred sixty-six thousand, four hundred seven".