57016642 has 4 divisors (see below), whose sum is σ = 85524966. Its totient is φ = 28508320.

The previous prime is 57016633. The next prime is 57016643. The reversal of 57016642 is 24661075.

It is a happy number.

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., 56987401 + 29241 = 7549^2 + 171^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (57016643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14254159 + ... + 14254162.

Almost surely, 2^57016642 is an apocalyptic number.

57016642 is a deficient number, since it is larger than the sum of its proper divisors (28508324).

57016642 is a wasteful number, since it uses less digits than its factorization.

57016642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28508323.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 57016642 is about 7550.9364982100. The cubic root of 57016642 is about 384.8875637263.

The spelling of 57016642 in words is "fifty-seven million, sixteen thousand, six hundred forty-two".