56429621 has 8 divisors (see below), whose sum is σ = 59116800. Its totient is φ = 53791920.

The previous prime is 56429599. The next prime is 56429669. The reversal of 56429621 is 12692465.

It is a happy number.

56429621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56429621 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 (56429671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10025 + ... + 14606.

It is an arithmetic number, because the mean of its divisors is an integer number (7389600).

Almost surely, 2^56429621 is an apocalyptic number.

It is an amenable number.

56429621 is a deficient number, since it is larger than the sum of its proper divisors (2687179).

56429621 is a wasteful number, since it uses less digits than its factorization.

56429621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24739.

The product of its digits is 25920, while the sum is 35.

The square root of 56429621 is about 7511.9651889502. The cubic root of 56429621 is about 383.5621206811.

The spelling of 56429621 in words is "fifty-six million, four hundred twenty-nine thousand, six hundred twenty-one".