56618242 has 4 divisors (see below), whose sum is σ = 84927366. Its totient is φ = 28309120.

The previous prime is 56618239. The next prime is 56618267. The reversal of 56618242 is 24281665.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 31708161 + 24910081 = 5631^2 + 4991^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56618198 and 56618207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14154559 + ... + 14154562.

Almost surely, 2^56618242 is an apocalyptic number.

56618242 is a deficient number, since it is larger than the sum of its proper divisors (28309124).

56618242 is a wasteful number, since it uses less digits than its factorization.

56618242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28309123.

The product of its digits is 23040, while the sum is 34.

The square root of 56618242 is about 7524.5094192246. The cubic root of 56618242 is about 383.9890088362.

The spelling of 56618242 in words is "fifty-six million, six hundred eighteen thousand, two hundred forty-two".