551261077 has 4 divisors (see below), whose sum is σ = 553209280. Its totient is φ = 549312876.

The previous prime is 551261071. The next prime is 551261083. The reversal of 551261077 is 770162155.

It is a happy number.

551261077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (551261071) and next prime (551261083).

It is a cyclic number.

It is not a de Polignac number, because 551261077 - 2¹¹ = 551259029 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 (551261071) 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, 973677 + ... + 974242.

It is an arithmetic number, because the mean of its divisors is an integer number (138302320).

Almost surely, 2^551261077 is an apocalyptic number.

It is an amenable number.

551261077 is a deficient number, since it is larger than the sum of its proper divisors (1948203).

551261077 is a wasteful number, since it uses less digits than its factorization.

551261077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948202.

The product of its (nonzero) digits is 14700, while the sum is 34.

The square root of 551261077 is about 23478.9496570865. The cubic root of 551261077 is about 819.9469909219.

The spelling of 551261077 in words is "five hundred fifty-one million, two hundred sixty-one thousand, seventy-seven".