258602985 has 24 divisors (see below), whose sum is σ = 449729280. Its totient is φ = 137464992.

The previous prime is 258602957. The next prime is 258603001. The reversal of 258602985 is 589206852.

It is not a de Polignac number, because 258602985 - 2¹² = 258598889 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 258602985.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4456 + ... + 23174.

It is an arithmetic number, because the mean of its divisors is an integer number (18738720).

Almost surely, 2^258602985 is an apocalyptic number.

It is an amenable number.

258602985 is a deficient number, since it is larger than the sum of its proper divisors (191126295).

258602985 is a wasteful number, since it uses less digits than its factorization.

258602985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19037 (or 19034 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 258602985 is about 16081.1375530464. The cubic root of 258602985 is about 637.1052411866.

The spelling of 258602985 in words is "two hundred fifty-eight million, six hundred two thousand, nine hundred eighty-five".