257032533047 has 4 divisors (see below), whose sum is σ = 257037485376. Its totient is φ = 257027580720.

The previous prime is 257032533041. The next prime is 257032533059. The reversal of 257032533047 is 740335230752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 257032533047 - 2⁸ = 257032532791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257032532995 and 257032533013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257032533041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2397479 + ... + 2502392.

It is an arithmetic number, because the mean of its divisors is an integer number (64259371344).

Almost surely, 2^257032533047 is an apocalyptic number.

257032533047 is a deficient number, since it is larger than the sum of its proper divisors (4952329).

257032533047 is an equidigital number, since it uses as much as digits as its factorization.

257032533047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4952328.

The product of its (nonzero) digits is 529200, while the sum is 41.

Adding to 257032533047 its reverse (740335230752), we get a palindrome (997367763799).

The spelling of 257032533047 in words is "two hundred fifty-seven billion, thirty-two million, five hundred thirty-three thousand, forty-seven".