551199877 has 2 divisors, whose sum is σ = 551199878. Its totient is φ = 551199876.

The previous prime is 551199799. The next prime is 551199919. The reversal of 551199877 is 778991155.

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., 514790721 + 36409156 = 22689^2 + 6034^2 .

It is a cyclic number.

It is not a de Polignac number, because 551199877 - 2¹⁹ = 550675589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (551199277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275599938 + 275599939.

It is an arithmetic number, because the mean of its divisors is an integer number (275599939).

Almost surely, 2^551199877 is an apocalyptic number.

It is an amenable number.

551199877 is a deficient number, since it is larger than the sum of its proper divisors (1).

551199877 is an equidigital number, since it uses as much as digits as its factorization.

551199877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 793800, while the sum is 52.

The square root of 551199877 is about 23477.6463258138. The cubic root of 551199877 is about 819.9166467921.

The spelling of 551199877 in words is "five hundred fifty-one million, one hundred ninety-nine thousand, eight hundred seventy-seven".