257825055582 has 48 divisors (see below), whose sum is σ = 578333574000. Its totient is φ = 82913588352.

The previous prime is 257825055577. The next prime is 257825055589. The reversal of 257825055582 is 285550528752.

257825055582 is a `hidden beast` number, since 2 + 5 + 7 + 8 + 2 + 5 + 0 + 55 + 582 = 666.

It is a super-2 number, since 2×257825055582² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257825055589) 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, 481269 + ... + 864447.

It is an arithmetic number, because the mean of its divisors is an integer number (12048616125).

Almost surely, 2^257825055582 is an apocalyptic number.

257825055582 is an abundant number, since it is smaller than the sum of its proper divisors (320508518418).

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

257825055582 is a wasteful number, since it uses less digits than its factorization.

257825055582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384505 (or 384502 counting only the distinct ones).

The product of its (nonzero) digits is 11200000, while the sum is 54.

The spelling of 257825055582 in words is "two hundred fifty-seven billion, eight hundred twenty-five million, fifty-five thousand, five hundred eighty-two".