56919427 has 4 divisors (see below), whose sum is σ = 57072400. Its totient is φ = 56766456.

The previous prime is 56919419. The next prime is 56919449. The reversal of 56919427 is 72491965.

It is a happy number.

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 56919427 - 2³ = 56919419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56919127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75927 + ... + 76672.

It is an arithmetic number, because the mean of its divisors is an integer number (14268100).

Almost surely, 2^56919427 is an apocalyptic number.

56919427 is a deficient number, since it is larger than the sum of its proper divisors (152973).

56919427 is a wasteful number, since it uses less digits than its factorization.

56919427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152972.

The product of its digits is 136080, while the sum is 43.

The square root of 56919427 is about 7544.4964709383. The cubic root of 56919427 is about 384.6686911951.

The spelling of 56919427 in words is "fifty-six million, nine hundred nineteen thousand, four hundred twenty-seven".