257214412753 has 4 divisors (see below), whose sum is σ = 257229198180. Its totient is φ = 257199627328.

The previous prime is 257214412729. The next prime is 257214412759. The reversal of 257214412753 is 357214412752.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 199476570384 + 57737842369 = 446628^2 + 240287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-257214412753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257214412759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7366588 + ... + 7401421.

It is an arithmetic number, because the mean of its divisors is an integer number (64307299545).

Almost surely, 2^257214412753 is an apocalyptic number.

It is an amenable number.

257214412753 is a deficient number, since it is larger than the sum of its proper divisors (14785427).

257214412753 is a wasteful number, since it uses less digits than its factorization.

257214412753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14785426.

The product of its digits is 470400, while the sum is 43.

Subtracting 257214412753 from its reverse (357214412752), we obtain a palindrome (99999999999).

The spelling of 257214412753 in words is "two hundred fifty-seven billion, two hundred fourteen million, four hundred twelve thousand, seven hundred fifty-three".