5257600121 has 2 divisors, whose sum is σ = 5257600122. Its totient is φ = 5257600120.

The previous prime is 5257600009. The next prime is 5257600133. The reversal of 5257600121 is 1210067525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5144475625 + 113124496 = 71725^2 + 10636^2 .

It is a cyclic number.

It is not a de Polignac number, because 5257600121 - 2³⁰ = 4183858297 is a prime.

It is not a weakly prime, because it can be changed into another prime (5257600141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2628800060 + 2628800061.

It is an arithmetic number, because the mean of its divisors is an integer number (2628800061).

Almost surely, 2^5257600121 is an apocalyptic number.

It is an amenable number.

5257600121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5257600121 is an equidigital number, since it uses as much as digits as its factorization.

5257600121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 5257600121 is about 72509.3105814695. The cubic root of 5257600121 is about 1738.8515918178.

Adding to 5257600121 its reverse (1210067525), we get a palindrome (6467667646).

The spelling of 5257600121 in words is "five billion, two hundred fifty-seven million, six hundred thousand, one hundred twenty-one".