75752057 has 8 divisors (see below), whose sum is σ = 77707080. Its totient is φ = 73820160.

The previous prime is 75752023. The next prime is 75752059. The reversal of 75752057 is 75025757.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7458361 + 68293696 = 2731^2 + 8264^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75752057 - 2¹² = 75747961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75752057.

It is not an unprimeable number, because it can be changed into a prime (75752059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 953 + ... + 12345.

It is an arithmetic number, because the mean of its divisors is an integer number (9713385).

Almost surely, 2^75752057 is an apocalyptic number.

It is an amenable number.

75752057 is a deficient number, since it is larger than the sum of its proper divisors (1955023).

75752057 is a wasteful number, since it uses less digits than its factorization.

75752057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11563.

The product of its (nonzero) digits is 85750, while the sum is 38.

The square root of 75752057 is about 8703.5657635247. The cubic root of 75752057 is about 423.1212237815.

The spelling of 75752057 in words is "seventy-five million, seven hundred fifty-two thousand, fifty-seven".