2453243557 has 2 divisors, whose sum is σ = 2453243558. Its totient is φ = 2453243556.

The previous prime is 2453243491. The next prime is 2453243563. The reversal of 2453243557 is 7553423542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2111770116 + 341473441 = 45954^2 + 18479^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2453243557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2453243567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1226621778 + 1226621779.

It is an arithmetic number, because the mean of its divisors is an integer number (1226621779).

Almost surely, 2^2453243557 is an apocalyptic number.

It is an amenable number.

2453243557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2453243557 is an equidigital number, since it uses as much as digits as its factorization.

2453243557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 40.

The square root of 2453243557 is about 49530.2287194396. The cubic root of 2453243557 is about 1348.6944043304.

The spelling of 2453243557 in words is "two billion, four hundred fifty-three million, two hundred forty-three thousand, five hundred fifty-seven".