53771057 has 2 divisors, whose sum is σ = 53771058. Its totient is φ = 53771056.

The previous prime is 53771021. The next prime is 53771059. The reversal of 53771057 is 75017735.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47665216 + 6105841 = 6904^2 + 2471^2 .

It is a cyclic number.

It is not a de Polignac number, because 53771057 - 2¹⁸ = 53508913 is a prime.

Together with 53771059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53771059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26885528 + 26885529.

It is an arithmetic number, because the mean of its divisors is an integer number (26885529).

Almost surely, 2^53771057 is an apocalyptic number.

It is an amenable number.

53771057 is a deficient number, since it is larger than the sum of its proper divisors (1).

53771057 is an equidigital number, since it uses as much as digits as its factorization.

53771057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25725, while the sum is 35.

The square root of 53771057 is about 7332.8750841672. The cubic root of 53771057 is about 377.4413914246.

The spelling of 53771057 in words is "fifty-three million, seven hundred seventy-one thousand, fifty-seven".