56321099 has 4 divisors (see below), whose sum is σ = 57630936. Its totient is φ = 55011264.

The previous prime is 56321093. The next prime is 56321101. The reversal of 56321099 is 99012365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56321099 - 2⁸ = 56320843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56321093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654854 + ... + 654939.

It is an arithmetic number, because the mean of its divisors is an integer number (14407734).

Almost surely, 2^56321099 is an apocalyptic number.

56321099 is a deficient number, since it is larger than the sum of its proper divisors (1309837).

56321099 is a wasteful number, since it uses less digits than its factorization.

56321099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309836.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 56321099 is about 7504.7384364813. The cubic root of 56321099 is about 383.3160818113.

The spelling of 56321099 in words is "fifty-six million, three hundred twenty-one thousand, ninety-nine".