255780130 has 16 divisors (see below), whose sum is σ = 487487160. Its totient is φ = 96293632.

The previous prime is 255780121. The next prime is 255780143. The reversal of 255780130 is 31087552.

It can be written as a sum of positive squares in 4 ways, for example, as 231009601 + 24770529 = 15199^2 + 4977^2 .

It is a junction number, because it is equal to n+sod(n) for n = 255780092 and 255780101.

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, 752125 + ... + 752464.

Almost surely, 2^255780130 is an apocalyptic number.

255780130 is a deficient number, since it is larger than the sum of its proper divisors (231707030).

255780130 is a wasteful number, since it uses less digits than its factorization.

255780130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504613.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 255780130 is about 15993.1275865604. The cubic root of 255780130 is about 634.7785864966.

The spelling of 255780130 in words is "two hundred fifty-five million, seven hundred eighty thousand, one hundred thirty".