257060751 has 8 divisors (see below), whose sum is σ = 350718720. Its totient is φ = 167388312.

The previous prime is 257060737. The next prime is 257060789. The reversal of 257060751 is 157060752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 257060751 - 2⁹ = 257060239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257060701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996231 + ... + 996488.

It is an arithmetic number, because the mean of its divisors is an integer number (43839840).

Almost surely, 2^257060751 is an apocalyptic number.

257060751 is a deficient number, since it is larger than the sum of its proper divisors (93657969).

257060751 is a wasteful number, since it uses less digits than its factorization.

257060751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992765.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 257060751 is about 16033.1142015517. The cubic root of 257060751 is about 635.8362108391.

Subtracting from 257060751 its reverse (157060752), we obtain a palindrome (99999999).

The spelling of 257060751 in words is "two hundred fifty-seven million, sixty thousand, seven hundred fifty-one".