56179642 has 4 divisors (see below), whose sum is σ = 84269466. Its totient is φ = 28089820.

The previous prime is 56179631. The next prime is 56179649. The reversal of 56179642 is 24697165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24697165 = 5 ⋅4939433.

It can be written as a sum of positive squares in only one way, i.e., 33512521 + 22667121 = 5789^2 + 4761^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 56179595 and 56179604.

It is not an unprimeable number, because it can be changed into a prime (56179649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14044909 + ... + 14044912.

Almost surely, 2^56179642 is an apocalyptic number.

56179642 is a deficient number, since it is larger than the sum of its proper divisors (28089824).

56179642 is a wasteful number, since it uses less digits than its factorization.

56179642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28089823.

The product of its digits is 90720, while the sum is 40.

The square root of 56179642 is about 7495.3079990084. The cubic root of 56179642 is about 382.9948984361.

The spelling of 56179642 in words is "fifty-six million, one hundred seventy-nine thousand, six hundred forty-two".