205502152 has 8 divisors (see below), whose sum is σ = 385316550. Its totient is φ = 102751072.

The previous prime is 205502111. The next prime is 205502153. The reversal of 205502152 is 251205502.

It can be written as a sum of positive squares in only one way, i.e., 198979236 + 6522916 = 14106^2 + 2554^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×205502152² = 84462268953262208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (205502153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12843877 + ... + 12843892.

Almost surely, 2^205502152 is an apocalyptic number.

It is an amenable number.

205502152 is a deficient number, since it is larger than the sum of its proper divisors (179814398).

205502152 is a wasteful number, since it uses less digits than its factorization.

205502152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25687775 (or 25687771 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 205502152 is about 14335.3462462544. The cubic root of 205502152 is about 590.1179042352.

Adding to 205502152 its reverse (251205502), we get a palindrome (456707654).

The spelling of 205502152 in words is "two hundred five million, five hundred two thousand, one hundred fifty-two".