5125453121 has 2 divisors, whose sum is σ = 5125453122. Its totient is φ = 5125453120.

The previous prime is 5125453111. The next prime is 5125453163. The reversal of 5125453121 is 1213545215.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3638502400 + 1486950721 = 60320^2 + 38561^2 .

It is a cyclic number.

It is not a de Polignac number, because 5125453121 - 2²² = 5121258817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5125453111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2562726560 + 2562726561.

It is an arithmetic number, because the mean of its divisors is an integer number (2562726561).

Almost surely, 2^5125453121 is an apocalyptic number.

It is an amenable number.

5125453121 is a deficient number, since it is larger than the sum of its proper divisors (1).

5125453121 is an equidigital number, since it uses as much as digits as its factorization.

5125453121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6000, while the sum is 29.

The square root of 5125453121 is about 71592.2699807738. The cubic root of 5125453121 is about 1724.1594303897.

Adding to 5125453121 its reverse (1213545215), we get a palindrome (6338998336).

The spelling of 5125453121 in words is "five billion, one hundred twenty-five million, four hundred fifty-three thousand, one hundred twenty-one".