254039440557 has 16 divisors (see below), whose sum is σ = 389134467072. Its totient is φ = 144405364080.

The previous prime is 254039440537. The next prime is 254039440579. The reversal of 254039440557 is 755044930452.

It is not a de Polignac number, because 254039440557 - 2⁸ = 254039440301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254039440507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31663833 + ... + 31671854.

It is an arithmetic number, because the mean of its divisors is an integer number (24320904192).

Almost surely, 2^254039440557 is an apocalyptic number.

It is an amenable number.

254039440557 is a deficient number, since it is larger than the sum of its proper divisors (135095026515).

254039440557 is a wasteful number, since it uses less digits than its factorization.

254039440557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63335888.

The product of its (nonzero) digits is 3024000, while the sum is 48.

The spelling of 254039440557 in words is "two hundred fifty-four billion, thirty-nine million, four hundred forty thousand, five hundred fifty-seven".