257755052753 has 4 divisors (see below), whose sum is σ = 281187330288. Its totient is φ = 234322775220.

The previous prime is 257755052719. The next prime is 257755052761. The reversal of 257755052753 is 357250557752.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 257755052753 - 2¹² = 257755048657 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257755052695 and 257755052704.

It is not an unprimeable number, because it can be changed into a prime (257755052153) 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, 11716138751 + ... + 11716138772.

It is an arithmetic number, because the mean of its divisors is an integer number (70296832572).

Almost surely, 2^257755052753 is an apocalyptic number.

It is an amenable number.

257755052753 is a deficient number, since it is larger than the sum of its proper divisors (23432277535).

257755052753 is a wasteful number, since it uses less digits than its factorization.

257755052753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23432277534.

The product of its (nonzero) digits is 12862500, while the sum is 53.

The spelling of 257755052753 in words is "two hundred fifty-seven billion, seven hundred fifty-five million, fifty-two thousand, seven hundred fifty-three".