550940501 has 2 divisors, whose sum is σ = 550940502. Its totient is φ = 550940500.

The previous prime is 550940497. The next prime is 550940567. The reversal of 550940501 is 105049055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544102276 + 6838225 = 23326^2 + 2615^2 .

It is a cyclic number.

It is not a de Polignac number, because 550940501 - 2² = 550940497 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (550940591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275470250 + 275470251.

It is an arithmetic number, because the mean of its divisors is an integer number (275470251).

Almost surely, 2^550940501 is an apocalyptic number.

It is an amenable number.

550940501 is a deficient number, since it is larger than the sum of its proper divisors (1).

550940501 is an equidigital number, since it uses as much as digits as its factorization.

550940501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 550940501 is about 23472.1217830856. The cubic root of 550940501 is about 819.7880182760.

Adding to 550940501 its reverse (105049055), we get a palindrome (655989556).

The spelling of 550940501 in words is "five hundred fifty million, nine hundred forty thousand, five hundred one".