257116069 has 8 divisors (see below), whose sum is σ = 293960448. Its totient is φ = 220300080.

The previous prime is 257116061. The next prime is 257116073. The reversal of 257116069 is 960611752.

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

It is not a de Polignac number, because 257116069 - 2³ = 257116061 is a prime.

It is a super-2 number, since 2×257116069² = 132217345876025522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257116061) 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, 18459 + ... + 29239.

It is an arithmetic number, because the mean of its divisors is an integer number (36745056).

Almost surely, 2^257116069 is an apocalyptic number.

It is an amenable number.

257116069 is a deficient number, since it is larger than the sum of its proper divisors (36844379).

257116069 is a wasteful number, since it uses less digits than its factorization.

257116069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14195.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 257116069 is about 16034.8392258856. The cubic root of 257116069 is about 635.8818170037.

The spelling of 257116069 in words is "two hundred fifty-seven million, one hundred sixteen thousand, sixty-nine".