254315650543 has 2 divisors, whose sum is σ = 254315650544. Its totient is φ = 254315650542.

The previous prime is 254315650493. The next prime is 254315650549. The reversal of 254315650543 is 345056513452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254315650543 - 2⁹ = 254315650031 is a prime.

It is a super-2 number, since 2×254315650543² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 254315650543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254315650549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127157825271 + 127157825272.

It is an arithmetic number, because the mean of its divisors is an integer number (127157825272).

Almost surely, 2^254315650543 is an apocalyptic number.

254315650543 is a deficient number, since it is larger than the sum of its proper divisors (1).

254315650543 is an equidigital number, since it uses as much as digits as its factorization.

254315650543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 254315650543 in words is "two hundred fifty-four billion, three hundred fifteen million, six hundred fifty thousand, five hundred forty-three".