55305305305253 has 2 divisors, whose sum is σ = 55305305305254. Its totient is φ = 55305305305252.

The previous prime is 55305305305247. The next prime is 55305305305273. The reversal of 55305305305253 is 35250350350355.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45524937245089 + 9780368060164 = 6747217^2 + 3127358^2 .

It is a cyclic number.

It is not a de Polignac number, because 55305305305253 - 2³² = 55301010337957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55305305305273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27652652652626 + 27652652652627.

It is an arithmetic number, because the mean of its divisors is an integer number (27652652652627).

Almost surely, 2^{55305305305253} is an apocalyptic number.

It is an amenable number.

55305305305253 is a deficient number, since it is larger than the sum of its proper divisors (1).

55305305305253 is an equidigital number, since it uses as much as digits as its factorization.

55305305305253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2531250, while the sum is 44.

The spelling of 55305305305253 in words is "fifty-five trillion, three hundred five billion, three hundred five million, three hundred five thousand, two hundred fifty-three".