258220233 has 6 divisors (see below), whose sum is σ = 372984794. Its totient is φ = 172146816.

The previous prime is 258220229. The next prime is 258220247. The reversal of 258220233 is 332022852.

It can be written as a sum of positive squares in only one way, i.e., 253860489 + 4359744 = 15933^2 + 2088^2 .

It is not a de Polignac number, because 258220233 - 2² = 258220229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 258220197 and 258220206.

It is not an unprimeable number, because it can be changed into a prime (258220223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14345560 + ... + 14345577.

Almost surely, 2^258220233 is an apocalyptic number.

It is an amenable number.

258220233 is a deficient number, since it is larger than the sum of its proper divisors (114764561).

258220233 is a wasteful number, since it uses less digits than its factorization.

258220233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28691143 (or 28691140 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 258220233 is about 16069.2324956732. The cubic root of 258220233 is about 636.7907646524.

The spelling of 258220233 in words is "two hundred fifty-eight million, two hundred twenty thousand, two hundred thirty-three".