257229011 has 16 divisors (see below), whose sum is σ = 292320000. Its totient is φ = 224386848.

The previous prime is 257228999. The next prime is 257229031. The reversal of 257229011 is 110922752.

It is a cyclic number.

It is not a de Polignac number, because 257229011 - 2⁶ = 257228947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (257229031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122210 + ... + 124296.

It is an arithmetic number, because the mean of its divisors is an integer number (18270000).

Almost surely, 2^257229011 is an apocalyptic number.

257229011 is a deficient number, since it is larger than the sum of its proper divisors (35090989).

257229011 is a wasteful number, since it uses less digits than its factorization.

257229011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 257229011 is about 16038.3606082417. The cubic root of 257229011 is about 635.9749101754.

The spelling of 257229011 in words is "two hundred fifty-seven million, two hundred twenty-nine thousand, eleven".