554521601 has 2 divisors, whose sum is σ = 554521602. Its totient is φ = 554521600.

The previous prime is 554521579. The next prime is 554521603. The reversal of 554521601 is 106125455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421234576 + 133287025 = 20524^2 + 11545^2 .

It is a cyclic number.

It is not a de Polignac number, because 554521601 - 2¹⁸ = 554259457 is a prime.

Together with 554521603, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_29070281 and since 554521601 and 29070281 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (554521603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277260800 + 277260801.

It is an arithmetic number, because the mean of its divisors is an integer number (277260801).

Almost surely, 2^554521601 is an apocalyptic number.

It is an amenable number.

554521601 is a deficient number, since it is larger than the sum of its proper divisors (1).

554521601 is an equidigital number, since it uses as much as digits as its factorization.

554521601 is an odious number, because the sum of its binary digits is odd.

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

The square root of 554521601 is about 23548.2823365102. The cubic root of 554521601 is about 821.5603844901.

The spelling of 554521601 in words is "five hundred fifty-four million, five hundred twenty-one thousand, six hundred one".