255877390 has 16 divisors (see below), whose sum is σ = 462920832. Its totient is φ = 101830624.

The previous prime is 255877361. The next prime is 255877393. The reversal of 255877390 is 93778552.

It is a self number, because there is not a number n which added to its sum of digits gives 255877390.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255877393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62974 + ... + 66913.

It is an arithmetic number, because the mean of its divisors is an integer number (28932552).

Almost surely, 2^255877390 is an apocalyptic number.

255877390 is a deficient number, since it is larger than the sum of its proper divisors (207043442).

255877390 is a wasteful number, since it uses less digits than its factorization.

255877390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130091.

The product of its (nonzero) digits is 529200, while the sum is 46.

The square root of 255877390 is about 15996.1679786129. The cubic root of 255877390 is about 634.8590341603.

The spelling of 255877390 in words is "two hundred fifty-five million, eight hundred seventy-seven thousand, three hundred ninety".