2505553229 has 2 divisors, whose sum is σ = 2505553230. Its totient is φ = 2505553228.

The previous prime is 2505553189. The next prime is 2505553247. The reversal of 2505553229 is 9223555052.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1368852004 + 1136701225 = 36998^2 + 33715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2505553229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2505553192 and 2505553201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505553289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252776614 + 1252776615.

It is an arithmetic number, because the mean of its divisors is an integer number (1252776615).

Almost surely, 2^2505553229 is an apocalyptic number.

It is an amenable number.

2505553229 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505553229 is an equidigital number, since it uses as much as digits as its factorization.

2505553229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 2505553229 is about 50055.5014858507. The cubic root of 2505553229 is about 1358.2129839835.

The spelling of 2505553229 in words is "two billion, five hundred five million, five hundred fifty-three thousand, two hundred twenty-nine".