258520095 has 24 divisors (see below), whose sum is σ = 449585136. Its totient is φ = 137420928.

The previous prime is 258520091. The next prime is 258520111. The reversal of 258520095 is 590025852.

It is not a de Polignac number, because 258520095 - 2² = 258520091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258520091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4459 + ... + 23171.

It is an arithmetic number, because the mean of its divisors is an integer number (18732714).

Almost surely, 2^258520095 is an apocalyptic number.

258520095 is a deficient number, since it is larger than the sum of its proper divisors (191065041).

258520095 is a wasteful number, since it uses less digits than its factorization.

258520095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19031 (or 19028 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 258520095 is about 16078.5601034421. The cubic root of 258520095 is about 637.0371634769.

The spelling of 258520095 in words is "two hundred fifty-eight million, five hundred twenty thousand, ninety-five".