550787953 has 2 divisors, whose sum is σ = 550787954. Its totient is φ = 550787952.

The previous prime is 550787933. The next prime is 550787999. The reversal of 550787953 is 359787055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 348494224 + 202293729 = 18668^2 + 14223^2 .

It is a cyclic number.

It is not a de Polignac number, because 550787953 - 2²¹ = 548690801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 550787897 and 550787906.

It is not a weakly prime, because it can be changed into another prime (550787933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275393976 + 275393977.

It is an arithmetic number, because the mean of its divisors is an integer number (275393977).

Almost surely, 2^550787953 is an apocalyptic number.

It is an amenable number.

550787953 is a deficient number, since it is larger than the sum of its proper divisors (1).

550787953 is an equidigital number, since it uses as much as digits as its factorization.

550787953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323000, while the sum is 49.

The square root of 550787953 is about 23468.8720010145. The cubic root of 550787953 is about 819.7123485401.

The spelling of 550787953 in words is "five hundred fifty million, seven hundred eighty-seven thousand, nine hundred fifty-three".