56642119 has 4 divisors (see below), whose sum is σ = 56824560. Its totient is φ = 56459680.

The previous prime is 56642093. The next prime is 56642141. The reversal of 56642119 is 91124665.

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 56642119 - 2²¹ = 54544967 is a prime.

It is a super-2 number, since 2×56642119² = 6416659289620322, 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 (56642149) 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, 90754 + ... + 91375.

It is an arithmetic number, because the mean of its divisors is an integer number (14206140).

Almost surely, 2^56642119 is an apocalyptic number.

56642119 is a deficient number, since it is larger than the sum of its proper divisors (182441).

56642119 is a wasteful number, since it uses less digits than its factorization.

56642119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182440.

The product of its digits is 12960, while the sum is 34.

The square root of 56642119 is about 7526.0958670482. The cubic root of 56642119 is about 384.0429797632.

The spelling of 56642119 in words is "fifty-six million, six hundred forty-two thousand, one hundred nineteen".