553121137 has 2 divisors, whose sum is σ = 553121138. Its totient is φ = 553121136.

The previous prime is 553121111. The next prime is 553121143. The reversal of 553121137 is 731121355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468462736 + 84658401 = 21644^2 + 9201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-553121137 is a prime.

It is equal to p_29000809 and since 553121137 and 29000809 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (553121837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276560568 + 276560569.

It is an arithmetic number, because the mean of its divisors is an integer number (276560569).

Almost surely, 2^553121137 is an apocalyptic number.

It is an amenable number.

553121137 is a deficient number, since it is larger than the sum of its proper divisors (1).

553121137 is an equidigital number, since it uses as much as digits as its factorization.

553121137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 28.

The square root of 553121137 is about 23518.5275261867. The cubic root of 553121137 is about 820.8681747849.

The spelling of 553121137 in words is "five hundred fifty-three million, one hundred twenty-one thousand, one hundred thirty-seven".