42057713 has 4 divisors (see below), whose sum is σ = 42474228. Its totient is φ = 41641200.

The previous prime is 42057679. The next prime is 42057721. The reversal of 42057713 is 31775024.

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

It can be written as a sum of positive squares in 2 ways, for example, as 23541904 + 18515809 = 4852^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 42057713 - 2¹⁸ = 41795569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42057733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208106 + ... + 208307.

It is an arithmetic number, because the mean of its divisors is an integer number (10618557).

Almost surely, 2^42057713 is an apocalyptic number.

It is an amenable number.

42057713 is a deficient number, since it is larger than the sum of its proper divisors (416515).

42057713 is a wasteful number, since it uses less digits than its factorization.

42057713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416514.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 42057713 is about 6485.1918244567. The cubic root of 42057713 is about 347.7618074312.

The spelling of 42057713 in words is "forty-two million, fifty-seven thousand, seven hundred thirteen".