255020404 has 6 divisors (see below), whose sum is σ = 446285714. Its totient is φ = 127510200.

The previous prime is 255020393. The next prime is 255020407. The reversal of 255020404 is 404020552.

It can be written as a sum of positive squares in only one way, i.e., 143760100 + 111260304 = 11990^2 + 10548^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255020407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31877547 + ... + 31877554.

Almost surely, 2^255020404 is an apocalyptic number.

It is an amenable number.

255020404 is a deficient number, since it is larger than the sum of its proper divisors (191265310).

255020404 is a wasteful number, since it uses less digits than its factorization.

255020404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63755105 (or 63755103 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 255020404 is about 15969.3582839136. The cubic root of 255020404 is about 634.1494836050.

Adding to 255020404 its reverse (404020552), we get a palindrome (659040956).

The spelling of 255020404 in words is "two hundred fifty-five million, twenty thousand, four hundred four".