553901 has 2 divisors, whose sum is σ = 553902. Its totient is φ = 553900.

The previous prime is 553897. The next prime is 553919. The reversal of 553901 is 109355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491401 + 62500 = 701^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 553901 - 2² = 553897 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276950 + 276951.

It is an arithmetic number, because the mean of its divisors is an integer number (276951).

2⁵⁵³⁹⁰¹ is an apocalyptic number.

It is an amenable number.

553901 is a deficient number, since it is larger than the sum of its proper divisors (1).

553901 is an equidigital number, since it uses as much as digits as its factorization.

553901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 553901 is about 744.2452552754. The cubic root of 553901 is about 82.1253782956.

Subtracting from 553901 its sum of digits (23), we obtain a triangular number (553878 = T₁₀₅₂).

The spelling of 553901 in words is "five hundred fifty-three thousand, nine hundred one".