257753052550 has 48 divisors (see below), whose sum is σ = 547964115552. Its totient is φ = 88363641600.

The previous prime is 257753052517. The next prime is 257753052551. The reversal of 257753052550 is 55250357752.

It is a self number, because there is not a number n which added to its sum of digits gives 257753052550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257753052551) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4148514 + ... + 4210186.

It is an arithmetic number, because the mean of its divisors is an integer number (11415919074).

Almost surely, 2^257753052550 is an apocalyptic number.

257753052550 is an abundant number, since it is smaller than the sum of its proper divisors (290211063002).

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

257753052550 is a wasteful number, since it uses less digits than its factorization.

257753052550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73633 (or 73628 counting only the distinct ones).

The product of its (nonzero) digits is 1837500, while the sum is 46.

The spelling of 257753052550 in words is "two hundred fifty-seven billion, seven hundred fifty-three million, fifty-two thousand, five hundred fifty".