57503786077 has 2 divisors, whose sum is σ = 57503786078. Its totient is φ = 57503786076.

The previous prime is 57503786003. The next prime is 57503786107. The reversal of 57503786077 is 77068730575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35738390116 + 21765395961 = 189046^2 + 147531^2 .

It is a cyclic number.

It is not a de Polignac number, because 57503786077 - 2²⁷ = 57369568349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57503786677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28751893038 + 28751893039.

It is an arithmetic number, because the mean of its divisors is an integer number (28751893039).

Almost surely, 2^57503786077 is an apocalyptic number.

It is an amenable number.

57503786077 is a deficient number, since it is larger than the sum of its proper divisors (1).

57503786077 is an equidigital number, since it uses as much as digits as its factorization.

57503786077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8643600, while the sum is 55.

The spelling of 57503786077 in words is "fifty-seven billion, five hundred three million, seven hundred eighty-six thousand, seventy-seven".