553219949 has 2 divisors, whose sum is σ = 553219950. Its totient is φ = 553219948.

The previous prime is 553219913. The next prime is 553219951. The reversal of 553219949 is 949912355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 552720100 + 499849 = 23510^2 + 707^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553219949 is a prime.

Together with 553219951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (553219969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276609974 + 276609975.

It is an arithmetic number, because the mean of its divisors is an integer number (276609975).

Almost surely, 2^553219949 is an apocalyptic number.

It is an amenable number.

553219949 is a deficient number, since it is larger than the sum of its proper divisors (1).

553219949 is an equidigital number, since it uses as much as digits as its factorization.

553219949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 437400, while the sum is 47.

The square root of 553219949 is about 23520.6281591287. The cubic root of 553219949 is about 820.9170530451.

The spelling of 553219949 in words is "five hundred fifty-three million, two hundred nineteen thousand, nine hundred forty-nine".