158933782225 has 27 divisors (see below), whose sum is σ = 200070887259. Its totient is φ = 125244596400.

The previous prime is 158933782223. The next prime is 158933782237. The reversal of 158933782225 is 522287339851.

The square root of 158933782225 is 398665.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 57216161601 + 101717620624 = 239199^2 + 318932^2 .

It is not a de Polignac number, because 158933782225 - 2¹ = 158933782223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158933782223) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 141525514 + ... + 141526636.

Almost surely, 2^158933782225 is an apocalyptic number.

158933782225 is the 398665-th square number.

158933782225 is the 199333-rd centered octagonal number.

It is an amenable number.

158933782225 is a deficient number, since it is larger than the sum of its proper divisors (41137105034).

158933782225 is an frugal number, since it uses more digits than its factorization.

158933782225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 1199 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 55.

The spelling of 158933782225 in words is "one hundred fifty-eight billion, nine hundred thirty-three million, seven hundred eighty-two thousand, two hundred twenty-five".