56555419 has 4 divisors (see below), whose sum is σ = 59532040. Its totient is φ = 53578800.

The previous prime is 56555417. The next prime is 56555431. The reversal of 56555419 is 91455565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91455565 = 5 ⋅18291113.

It is a cyclic number.

It is not a de Polignac number, because 56555419 - 2¹ = 56555417 is a prime.

It is a super-2 number, since 2×56555419² = 6397030836531122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56555417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1488282 + ... + 1488319.

It is an arithmetic number, because the mean of its divisors is an integer number (14883010).

Almost surely, 2^56555419 is an apocalyptic number.

56555419 is a deficient number, since it is larger than the sum of its proper divisors (2976621).

56555419 is a wasteful number, since it uses less digits than its factorization.

56555419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2976620.

The product of its digits is 135000, while the sum is 40.

The square root of 56555419 is about 7520.3337027023. Note that the first 3 decimals coincide. The cubic root of 56555419 is about 383.8469328992.

The spelling of 56555419 in words is "fifty-six million, five hundred fifty-five thousand, four hundred nineteen".