257987059 has 8 divisors (see below), whose sum is σ = 284603760. Its totient is φ = 231897600.

The previous prime is 257987039. The next prime is 257987069. The reversal of 257987059 is 950789752.

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

It is not a de Polignac number, because 257987059 - 2¹⁹ = 257462771 is a prime.

It is a super-2 number, since 2×257987059² = 133114645222938962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 257986997 and 257987015.

It is not an unprimeable number, because it can be changed into a prime (257987039) 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, 130782 + ... + 132739.

It is an arithmetic number, because the mean of its divisors is an integer number (35575470).

Almost surely, 2^257987059 is an apocalyptic number.

257987059 is a deficient number, since it is larger than the sum of its proper divisors (26616701).

257987059 is a wasteful number, since it uses less digits than its factorization.

257987059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263621.

The product of its (nonzero) digits is 1587600, while the sum is 52.

The square root of 257987059 is about 16061.9755634231. The cubic root of 257987059 is about 636.5990319802.

The spelling of 257987059 in words is "two hundred fifty-seven million, nine hundred eighty-seven thousand, fifty-nine".