553601401 has 2 divisors, whose sum is σ = 553601402. Its totient is φ = 553601400.

The previous prime is 553601383. The next prime is 553601443. The reversal of 553601401 is 104106355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 502835776 + 50765625 = 22424^2 + 7125^2 .

It is a cyclic number.

It is not a de Polignac number, because 553601401 - 2²¹ = 551504249 is a prime.

It is a super-2 number, since 2×553601401² = 612949022378325602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (553608401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276800700 + 276800701.

It is an arithmetic number, because the mean of its divisors is an integer number (276800701).

Almost surely, 2^553601401 is an apocalyptic number.

It is an amenable number.

553601401 is a deficient number, since it is larger than the sum of its proper divisors (1).

553601401 is an equidigital number, since it uses as much as digits as its factorization.

553601401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 553601401 is about 23528.7356438887. The cubic root of 553601401 is about 821.1056871850.

Adding to 553601401 its reverse (104106355), we get a palindrome (657707756).

The spelling of 553601401 in words is "five hundred fifty-three million, six hundred one thousand, four hundred one".