56166501 has 8 divisors (see below), whose sum is σ = 75576160. Its totient is φ = 37100592.

The previous prime is 56166499. The next prime is 56166541. The reversal of 56166501 is 10566165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56166501 - 2¹ = 56166499 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56166541) 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 7 ways as a sum of consecutive naturals, for example, 85555 + ... + 86208.

It is an arithmetic number, because the mean of its divisors is an integer number (9447020).

Almost surely, 2^56166501 is an apocalyptic number.

It is an amenable number.

56166501 is a deficient number, since it is larger than the sum of its proper divisors (19409659).

56166501 is a wasteful number, since it uses less digits than its factorization.

56166501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171875.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 56166501 is about 7494.4313326629. The cubic root of 56166501 is about 382.9650339499.

The spelling of 56166501 in words is "fifty-six million, one hundred sixty-six thousand, five hundred one".