57204121529 has 2 divisors, whose sum is σ = 57204121530. Its totient is φ = 57204121528.

The previous prime is 57204121511. The next prime is 57204121531. The reversal of 57204121529 is 92512140275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54849640000 + 2354481529 = 234200^2 + 48523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57204121529 is a prime.

Together with 57204121531, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57204121492 and 57204121501.

It is not a weakly prime, because it can be changed into another prime (57204121549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28602060764 + 28602060765.

It is an arithmetic number, because the mean of its divisors is an integer number (28602060765).

Almost surely, 2^57204121529 is an apocalyptic number.

It is an amenable number.

57204121529 is a deficient number, since it is larger than the sum of its proper divisors (1).

57204121529 is an equidigital number, since it uses as much as digits as its factorization.

57204121529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 57204121529 in words is "fifty-seven billion, two hundred four million, one hundred twenty-one thousand, five hundred twenty-nine".