56755199 has 4 divisors (see below), whose sum is σ = 57554640. Its totient is φ = 55955760.

The previous prime is 56755189. The next prime is 56755201. The reversal of 56755199 is 99155765.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99155765 = 5 ⋅19831153.

It is a cyclic number.

It is not a de Polignac number, because 56755199 - 2⁴ = 56755183 is a prime.

It is a super-2 number, since 2×56755199² = 6442305227059202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56755159) 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, 399614 + ... + 399755.

It is an arithmetic number, because the mean of its divisors is an integer number (14388660).

Almost surely, 2^56755199 is an apocalyptic number.

56755199 is a deficient number, since it is larger than the sum of its proper divisors (799441).

56755199 is an equidigital number, since it uses as much as digits as its factorization.

56755199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799440.

The product of its digits is 425250, while the sum is 47.

The square root of 56755199 is about 7533.6046485066. The cubic root of 56755199 is about 384.2983769447.

The spelling of 56755199 in words is "fifty-six million, seven hundred fifty-five thousand, one hundred ninety-nine".