257463750 has 80 divisors (see below), whose sum is σ = 653190912. Its totient is φ = 67620000.

The previous prime is 257463719. The next prime is 257463761. The reversal of 257463750 is 57364752.

It is a junction number, because it is equal to n+sod(n) for n = 257463699 and 257463708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 265767 + ... + 266733.

Almost surely, 2^257463750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257463750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326595456).

257463750 is an abundant number, since it is smaller than the sum of its proper divisors (395727162).

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

257463750 is an equidigital number, since it uses as much as digits as its factorization.

257463750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 39.

The square root of 257463750 is about 16045.6769878993. The cubic root of 257463750 is about 636.1683081712.

The spelling of 257463750 in words is "two hundred fifty-seven million, four hundred sixty-three thousand, seven hundred fifty".