257440050054 has 48 divisors (see below), whose sum is σ = 608769676944. Its totient is φ = 77976878400.

The previous prime is 257440050053. The next prime is 257440050083. The reversal of 257440050054 is 450050044752.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257440050053) 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 23 ways as a sum of consecutive naturals, for example, 147052 + ... + 732464.

It is an arithmetic number, because the mean of its divisors is an integer number (12682701603).

Almost surely, 2^257440050054 is an apocalyptic number.

257440050054 is an abundant number, since it is smaller than the sum of its proper divisors (351329626890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257440050054 is a wasteful number, since it uses less digits than its factorization.

257440050054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587653 (or 587650 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 36.

The spelling of 257440050054 in words is "two hundred fifty-seven billion, four hundred forty million, fifty thousand, fifty-four".