255603430 has 16 divisors (see below), whose sum is σ = 471308544. Its totient is φ = 99747520.

The previous prime is 255603421. The next prime is 255603443. The reversal of 255603430 is 34306552.

It is a super-2 number, since 2×255603430² = 130666226855529800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311302 + ... + 312121.

It is an arithmetic number, because the mean of its divisors is an integer number (29456784).

Almost surely, 2^255603430 is an apocalyptic number.

255603430 is a deficient number, since it is larger than the sum of its proper divisors (215705114).

255603430 is a wasteful number, since it uses less digits than its factorization.

255603430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623471.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 255603430 is about 15987.6023843477. The cubic root of 255603430 is about 634.6323786121.

Adding to 255603430 its reverse (34306552), we get a palindrome (289909982).

The spelling of 255603430 in words is "two hundred fifty-five million, six hundred three thousand, four hundred thirty".