56566429 has 8 divisors (see below), whose sum is σ = 61355448. Its totient is φ = 51939840.

The previous prime is 56566399. The next prime is 56566441. The reversal of 56566429 is 92466565.

It can be written as a sum of positive squares in 4 ways, for example, as 1836025 + 54730404 = 1355^2 + 7398^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56566429 - 2¹¹ = 56564381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56566469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39882 + ... + 41275.

It is an arithmetic number, because the mean of its divisors is an integer number (7669431).

Almost surely, 2^56566429 is an apocalyptic number.

It is an amenable number.

56566429 is a deficient number, since it is larger than the sum of its proper divisors (4789019).

56566429 is a wasteful number, since it uses less digits than its factorization.

56566429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81215.

The product of its digits is 388800, while the sum is 43.

The square root of 56566429 is about 7521.0656824681. The cubic root of 56566429 is about 383.8718399172.

The spelling of 56566429 in words is "fifty-six million, five hundred sixty-six thousand, four hundred twenty-nine".