258061032500 has 60 divisors (see below), whose sum is σ = 579580178100. Its totient is φ = 100434528000.

The previous prime is 258061032499. The next prime is 258061032511. The reversal of 258061032500 is 5230160852.

It can be written as a sum of positive squares in 10 ways, for example, as 209291610256 + 48769422244 = 457484^2 + 220838^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1302425 + ... + 1487424.

It is an arithmetic number, because the mean of its divisors is an integer number (9659669635).

Almost surely, 2^258061032500 is an apocalyptic number.

258061032500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

258061032500 is an abundant number, since it is smaller than the sum of its proper divisors (321519145600).

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

258061032500 is a wasteful number, since it uses less digits than its factorization.

258061032500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789910 (or 2789893 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 258061032500 in words is "two hundred fifty-eight billion, sixty-one million, thirty-two thousand, five hundred".