554142521 has 2 divisors, whose sum is σ = 554142522. Its totient is φ = 554142520.

The previous prime is 554142509. The next prime is 554142551. The reversal of 554142521 is 125241455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300536896 + 253605625 = 17336^2 + 15925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-554142521 is a prime.

It is not a weakly prime, because it can be changed into another prime (554142551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277071260 + 277071261.

It is an arithmetic number, because the mean of its divisors is an integer number (277071261).

Almost surely, 2^554142521 is an apocalyptic number.

It is an amenable number.

554142521 is a deficient number, since it is larger than the sum of its proper divisors (1).

554142521 is an equidigital number, since it uses as much as digits as its factorization.

554142521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8000, while the sum is 29.

The square root of 554142521 is about 23540.2319657220. The cubic root of 554142521 is about 821.3731311262.

Adding to 554142521 its reverse (125241455), we get a palindrome (679383976).

The spelling of 554142521 in words is "five hundred fifty-four million, one hundred forty-two thousand, five hundred twenty-one".