57352581650 has 72 divisors (see below), whose sum is σ = 133637891940. Its totient is φ = 18151136640.

The previous prime is 57352581647. The next prime is 57352581683. The reversal of 57352581650 is 5618525375.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 398281849 + 56954299801 = 19957^2 + 238651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57352581595 and 57352581604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 868505 + ... + 932204.

Almost surely, 2^57352581650 is an apocalyptic number.

57352581650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

57352581650 is an abundant number, since it is smaller than the sum of its proper divisors (76285310290).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57352581650 is a wasteful number, since it uses less digits than its factorization.

57352581650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800748 (or 1800736 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 47.

The spelling of 57352581650 in words is "fifty-seven billion, three hundred fifty-two million, five hundred eighty-one thousand, six hundred fifty".