2253948392557 has 2 divisors, whose sum is σ = 2253948392558. Its totient is φ = 2253948392556.

The previous prime is 2253948392543. The next prime is 2253948392561. The reversal of 2253948392557 is 7552938493522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2162587889476 + 91360503081 = 1470574^2 + 302259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2253948392557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2253948392567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1126974196278 + 1126974196279.

It is an arithmetic number, because the mean of its divisors is an integer number (1126974196279).

Almost surely, 2^{2253948392557} is an apocalyptic number.

It is an amenable number.

2253948392557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2253948392557 is an equidigital number, since it uses as much as digits as its factorization.

2253948392557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296000, while the sum is 64.

The spelling of 2253948392557 in words is "two trillion, two hundred fifty-three billion, nine hundred forty-eight million, three hundred ninety-two thousand, five hundred fifty-seven".