554622421 has 2 divisors, whose sum is σ = 554622422. Its totient is φ = 554622420.

The previous prime is 554622389. The next prime is 554622427. The reversal of 554622421 is 124226455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 311699025 + 242923396 = 17655^2 + 15586^2 .

It is a cyclic number.

It is not a de Polignac number, because 554622421 - 2⁵ = 554622389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554622427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277311210 + 277311211.

It is an arithmetic number, because the mean of its divisors is an integer number (277311211).

Almost surely, 2^554622421 is an apocalyptic number.

It is an amenable number.

554622421 is a deficient number, since it is larger than the sum of its proper divisors (1).

554622421 is an equidigital number, since it uses as much as digits as its factorization.

554622421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 31.

The square root of 554622421 is about 23550.4229473698. The cubic root of 554622421 is about 821.6101719696.

Adding to 554622421 its reverse (124226455), we get a palindrome (678848876).

The spelling of 554622421 in words is "five hundred fifty-four million, six hundred twenty-two thousand, four hundred twenty-one".