255401330 has 8 divisors (see below), whose sum is σ = 459722412. Its totient is φ = 102160528.

The previous prime is 255401303. The next prime is 255401359. The reversal of 255401330 is 33104552.

It can be written as a sum of positive squares in 2 ways, for example, as 209120521 + 46280809 = 14461^2 + 6803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 255401296 and 255401305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12770057 + ... + 12770076.

Almost surely, 2^255401330 is an apocalyptic number.

255401330 is a deficient number, since it is larger than the sum of its proper divisors (204321082).

255401330 is a wasteful number, since it uses less digits than its factorization.

255401330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25540140.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 255401330 is about 15981.2806120160. The cubic root of 255401330 is about 634.4650712296.

Adding to 255401330 its reverse (33104552), we get a palindrome (288505882).

The spelling of 255401330 in words is "two hundred fifty-five million, four hundred one thousand, three hundred thirty".