258055956 has 60 divisors (see below), whose sum is σ = 677328960. Its totient is φ = 85672080.

The previous prime is 258055951. The next prime is 258055957. The reversal of 258055956 is 659550852.

258055956 is a `hidden beast` number, since 2 + 58 + 0 + 5 + 595 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258055951) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 86335 + ... + 89273.

It is an arithmetic number, because the mean of its divisors is an integer number (11288816).

Almost surely, 2^258055956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258055956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338664480).

258055956 is an abundant number, since it is smaller than the sum of its proper divisors (419273004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

258055956 is a wasteful number, since it uses less digits than its factorization.

258055956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226 (or 3215 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The square root of 258055956 is about 16064.1201439730. The cubic root of 258055956 is about 636.6556961400.

The spelling of 258055956 in words is "two hundred fifty-eight million, fifty-five thousand, nine hundred fifty-six".