258261357 has 16 divisors (see below), whose sum is σ = 366552000. Its totient is φ = 161276544.

The previous prime is 258261317. The next prime is 258261361. The reversal of 258261357 is 753162852.

It is a de Polignac number, because none of the positive numbers 2^k-258261357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258261307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20382 + ... + 30527.

It is an arithmetic number, because the mean of its divisors is an integer number (22909500).

Almost surely, 2^258261357 is an apocalyptic number.

It is an amenable number.

258261357 is a deficient number, since it is larger than the sum of its proper divisors (108290643).

258261357 is a wasteful number, since it uses less digits than its factorization.

258261357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51020.

The product of its digits is 100800, while the sum is 39.

The square root of 258261357 is about 16070.5120329130. The cubic root of 258261357 is about 636.8245678301.

The spelling of 258261357 in words is "two hundred fifty-eight million, two hundred sixty-one thousand, three hundred fifty-seven".