258473550 has 48 divisors (see below), whose sum is σ = 643923072. Its totient is φ = 68613600.

The previous prime is 258473519. The next prime is 258473557. The reversal of 258473550 is 55374852.

It is a junction number, because it is equal to n+sod(n) for n = 258473499 and 258473508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (258473557) 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, 30255 + ... + 37845.

It is an arithmetic number, because the mean of its divisors is an integer number (13415064).

Almost surely, 2^258473550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 258473550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321961536).

258473550 is an abundant number, since it is smaller than the sum of its proper divisors (385449522).

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

258473550 is a wasteful number, since it uses less digits than its factorization.

258473550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7833 (or 7828 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 39.

The square root of 258473550 is about 16077.1126138993. The cubic root of 258473550 is about 636.9989296026.

The spelling of 258473550 in words is "two hundred fifty-eight million, four hundred seventy-three thousand, five hundred fifty".