258252555 has 16 divisors (see below), whose sum is σ = 450768384. Its totient is φ = 125213280.

The previous prime is 258252551. The next prime is 258252581. The reversal of 258252555 is 555252852.

It is not a de Polignac number, because 258252555 - 2² = 258252551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (258252551) 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, 782419 + ... + 782748.

It is an arithmetic number, because the mean of its divisors is an integer number (28173024).

Almost surely, 2^258252555 is an apocalyptic number.

258252555 is a deficient number, since it is larger than the sum of its proper divisors (192515829).

258252555 is a wasteful number, since it uses less digits than its factorization.

258252555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565186.

The product of its digits is 200000, while the sum is 39.

The square root of 258252555 is about 16070.2381749618. The cubic root of 258252555 is about 636.8173330486.

The spelling of 258252555 in words is "two hundred fifty-eight million, two hundred fifty-two thousand, five hundred fifty-five".