258955542 has 40 divisors (see below), whose sum is σ = 582220056. Its totient is φ = 86025888.

The previous prime is 258955537. The next prime is 258955547. The reversal of 258955542 is 245559852.

258955542 is a `hidden beast` number, since 2 + 5 + 8 + 95 + 554 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (258955537) and next prime (258955547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258955547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 48153 + ... + 53259.

Almost surely, 2^258955542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258955542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291110028).

258955542 is an abundant number, since it is smaller than the sum of its proper divisors (323264514).

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

258955542 is a wasteful number, since it uses less digits than its factorization.

258955542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5434 (or 5425 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The square root of 258955542 is about 16092.0956372997. The cubic root of 258955542 is about 637.3946344893.

The spelling of 258955542 in words is "two hundred fifty-eight million, nine hundred fifty-five thousand, five hundred forty-two".