258781552 has 80 divisors (see below), whose sum is σ = 542822400. Its totient is φ = 119266560.

The previous prime is 258781519. The next prime is 258781603. The reversal of 258781552 is 255187852.

258781552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 258781499 and 258781508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1082649 + ... + 1082887.

It is an arithmetic number, because the mean of its divisors is an integer number (6785280).

Almost surely, 2^258781552 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 258781552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271411200).

258781552 is an abundant number, since it is smaller than the sum of its proper divisors (284040848).

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

258781552 is a wasteful number, since it uses less digits than its factorization.

258781552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 368 counting only the distinct ones).

The product of its digits is 224000, while the sum is 43.

The square root of 258781552 is about 16086.6886586395. The cubic root of 258781552 is about 637.2518491827.

The spelling of 258781552 in words is "two hundred fifty-eight million, seven hundred eighty-one thousand, five hundred fifty-two".