258257613 has 8 divisors (see below), whose sum is σ = 352351648. Its totient is φ = 168167664.

The previous prime is 258257611. The next prime is 258257617. The reversal of 258257613 is 316752852.

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

It is not a de Polignac number, because 258257613 - 2¹ = 258257611 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258257611) 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, 1000870 + ... + 1001127.

It is an arithmetic number, because the mean of its divisors is an integer number (44043956).

Almost surely, 2^258257613 is an apocalyptic number.

It is an amenable number.

258257613 is a deficient number, since it is larger than the sum of its proper divisors (94094035).

258257613 is a wasteful number, since it uses less digits than its factorization.

258257613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002043.

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

The square root of 258257613 is about 16070.3955458477. The cubic root of 258257613 is about 636.8214904789.

The spelling of 258257613 in words is "two hundred fifty-eight million, two hundred fifty-seven thousand, six hundred thirteen".