255580077 has 16 divisors (see below), whose sum is σ = 360335360. Its totient is φ = 160687152.

The previous prime is 255580069. The next prime is 255580097. The reversal of 255580077 is 770085552.

It is not a de Polignac number, because 255580077 - 2³ = 255580069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255580037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2658 + ... + 22764.

It is an arithmetic number, because the mean of its divisors is an integer number (22520960).

Almost surely, 2^255580077 is an apocalyptic number.

It is an amenable number.

255580077 is a deficient number, since it is larger than the sum of its proper divisors (104755283).

255580077 is a wasteful number, since it uses less digits than its factorization.

255580077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20352.

The product of its (nonzero) digits is 98000, while the sum is 39.

The square root of 255580077 is about 15986.8720205048. The cubic root of 255580077 is about 634.6130504660.

The spelling of 255580077 in words is "two hundred fifty-five million, five hundred eighty thousand, seventy-seven".