255647470 has 128 divisors (see below), whose sum is σ = 558835200. Its totient is φ = 83317248.

The previous prime is 255647453. The next prime is 255647473. The reversal of 255647470 is 74746552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255647473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3080049 + ... + 3080131.

It is an arithmetic number, because the mean of its divisors is an integer number (4365900).

Almost surely, 2^255647470 is an apocalyptic number.

255647470 is an abundant number, since it is smaller than the sum of its proper divisors (303187730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255647470 is a wasteful number, since it uses less digits than its factorization.

255647470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 255647470 is about 15988.9796422411. The cubic root of 255647470 is about 634.6688251820.

The spelling of 255647470 in words is "two hundred fifty-five million, six hundred forty-seven thousand, four hundred seventy".