551070255077 has 4 divisors (see below), whose sum is σ = 555092665836. Its totient is φ = 547047844320.

The previous prime is 551070255067. The next prime is 551070255097. The reversal of 551070255077 is 770552070155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154228212961 + 396842042116 = 392719^2 + 629954^2 .

It is a cyclic number.

It is not a de Polignac number, because 551070255077 - 2⁶ = 551070255013 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 (551070255067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2011205174 + ... + 2011205447.

It is an arithmetic number, because the mean of its divisors is an integer number (138773166459).

Almost surely, 2^551070255077 is an apocalyptic number.

It is an amenable number.

551070255077 is a deficient number, since it is larger than the sum of its proper divisors (4022410759).

551070255077 is a wasteful number, since it uses less digits than its factorization.

551070255077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022410758.

The product of its (nonzero) digits is 428750, while the sum is 44.

The spelling of 551070255077 in words is "five hundred fifty-one billion, seventy million, two hundred fifty-five thousand, seventy-seven".