551552077 has 2 divisors, whose sum is σ = 551552078. Its totient is φ = 551552076.

The previous prime is 551552059. The next prime is 551552087. The reversal of 551552077 is 770255155.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395651881 + 155900196 = 19891^2 + 12486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551552077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551552017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275776038 + 275776039.

It is an arithmetic number, because the mean of its divisors is an integer number (275776039).

Almost surely, 2^551552077 is an apocalyptic number.

It is an amenable number.

551552077 is a deficient number, since it is larger than the sum of its proper divisors (1).

551552077 is an equidigital number, since it uses as much as digits as its factorization.

551552077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61250, while the sum is 37.

The square root of 551552077 is about 23485.1458798961. The cubic root of 551552077 is about 820.0912435647.

The spelling of 551552077 in words is "five hundred fifty-one million, five hundred fifty-two thousand, seventy-seven".