57762530081 has 4 divisors (see below), whose sum is σ = 57888925572. Its totient is φ = 57636134592.

The previous prime is 57762530069. The next prime is 57762530083. The reversal of 57762530081 is 18003526775.

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 2 ways, for example, as 44379742225 + 13382787856 = 210665^2 + 115684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57762530081 is a prime.

It is a super-2 number, since 2×57762530081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57762530083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63197060 + ... + 63197973.

It is an arithmetic number, because the mean of its divisors is an integer number (14472231393).

Almost surely, 2^57762530081 is an apocalyptic number.

It is an amenable number.

57762530081 is a deficient number, since it is larger than the sum of its proper divisors (126395491).

57762530081 is a wasteful number, since it uses less digits than its factorization.

57762530081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126395490.

The product of its (nonzero) digits is 352800, while the sum is 44.

It can be divided in two parts, 577625 and 30081, that added together give a palindrome (607706).

The spelling of 57762530081 in words is "fifty-seven billion, seven hundred sixty-two million, five hundred thirty thousand, eighty-one".