5154225421 has 2 divisors, whose sum is σ = 5154225422. Its totient is φ = 5154225420.

The previous prime is 5154225397. The next prime is 5154225449. The reversal of 5154225421 is 1245224515.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2958272100 + 2195953321 = 54390^2 + 46861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5154225421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5154225491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2577112710 + 2577112711.

It is an arithmetic number, because the mean of its divisors is an integer number (2577112711).

Almost surely, 2^5154225421 is an apocalyptic number.

It is an amenable number.

5154225421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5154225421 is an equidigital number, since it uses as much as digits as its factorization.

5154225421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16000, while the sum is 31.

The square root of 5154225421 is about 71792.9343389724. The cubic root of 5154225421 is about 1727.3796656154.

Adding to 5154225421 its reverse (1245224515), we get a palindrome (6399449936).

The spelling of 5154225421 in words is "five billion, one hundred fifty-four million, two hundred twenty-five thousand, four hundred twenty-one".