551911147 has 2 divisors, whose sum is σ = 551911148. Its totient is φ = 551911146.

The previous prime is 551911133. The next prime is 551911153. The reversal of 551911147 is 741119155.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551911147 is a prime.

It is not a weakly prime, because it can be changed into another prime (551911247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275955573 + 275955574.

It is an arithmetic number, because the mean of its divisors is an integer number (275955574).

Almost surely, 2^551911147 is an apocalyptic number.

551911147 is a deficient number, since it is larger than the sum of its proper divisors (1).

551911147 is an equidigital number, since it uses as much as digits as its factorization.

551911147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 34.

The square root of 551911147 is about 23492.7892554290. The cubic root of 551911147 is about 820.2691695162.

The spelling of 551911147 in words is "five hundred fifty-one million, nine hundred eleven thousand, one hundred forty-seven".