257200823000 has 64 divisors (see below), whose sum is σ = 656563583520. Its totient is φ = 93527568000.

The previous prime is 257200822981. The next prime is 257200823003. The reversal of 257200823000 is 328002752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257200823003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11679947 + ... + 11701946.

Almost surely, 2^257200823000 is an apocalyptic number.

257200823000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257200823000 is an abundant number, since it is smaller than the sum of its proper divisors (399362760520).

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

257200823000 is a wasteful number, since it uses less digits than its factorization.

257200823000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23381925 (or 23381911 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 257200823000 its reverse (328002752), we get a palindrome (257528825752).

The spelling of 257200823000 in words is "two hundred fifty-seven billion, two hundred million, eight hundred twenty-three thousand".