254015540257 has 2 divisors, whose sum is σ = 254015540258. Its totient is φ = 254015540256.

The previous prime is 254015540239. The next prime is 254015540267. The reversal of 254015540257 is 752045510452.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136006801681 + 118008738576 = 368791^2 + 343524^2 .

It is a cyclic number.

It is not a de Polignac number, because 254015540257 - 2¹⁵ = 254015507489 is a prime.

It is not a weakly prime, because it can be changed into another prime (254015540267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127007770128 + 127007770129.

It is an arithmetic number, because the mean of its divisors is an integer number (127007770129).

Almost surely, 2^254015540257 is an apocalyptic number.

It is an amenable number.

254015540257 is a deficient number, since it is larger than the sum of its proper divisors (1).

254015540257 is an equidigital number, since it uses as much as digits as its factorization.

254015540257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280000, while the sum is 40.

The spelling of 254015540257 in words is "two hundred fifty-four billion, fifteen million, five hundred forty thousand, two hundred fifty-seven".