57033390977 has 4 divisors (see below), whose sum is σ = 57040965636. Its totient is φ = 57025816320.

The previous prime is 57033390943. The next prime is 57033390979. The reversal of 57033390977 is 77909333075.

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 36691785601 + 20341605376 = 191551^2 + 142624^2 .

It is a cyclic number.

It is not a de Polignac number, because 57033390977 - 2¹² = 57033386881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57033390979) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3776024 + ... + 3791097.

It is an arithmetic number, because the mean of its divisors is an integer number (14260241409).

Almost surely, 2^57033390977 is an apocalyptic number.

It is an amenable number.

57033390977 is a deficient number, since it is larger than the sum of its proper divisors (7574659).

57033390977 is an equidigital number, since it uses as much as digits as its factorization.

57033390977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7574658.

The product of its (nonzero) digits is 3750705, while the sum is 53.

The spelling of 57033390977 in words is "fifty-seven billion, thirty-three million, three hundred ninety thousand, nine hundred seventy-seven".