257532803 has 16 divisors (see below), whose sum is σ = 285573600. Its totient is φ = 230292480.

The previous prime is 257532757. The next prime is 257532809. The reversal of 257532803 is 308235752.

It is not a de Polignac number, because 257532803 - 2⁶ = 257532739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257532809) 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, 227543 + ... + 228671.

It is an arithmetic number, because the mean of its divisors is an integer number (17848350).

Almost surely, 2^257532803 is an apocalyptic number.

257532803 is a deficient number, since it is larger than the sum of its proper divisors (28040797).

257532803 is a wasteful number, since it uses less digits than its factorization.

257532803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 257532803 is about 16047.8286070110. The cubic root of 257532803 is about 636.2251775408.

The spelling of 257532803 in words is "two hundred fifty-seven million, five hundred thirty-two thousand, eight hundred three".