8947025551 has 2 divisors, whose sum is σ = 8947025552. Its totient is φ = 8947025550.

The previous prime is 8947025533. The next prime is 8947025561. The reversal of 8947025551 is 1555207498.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8947025551 - 2⁵ = 8947025519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8947025561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4473512775 + 4473512776.

It is an arithmetic number, because the mean of its divisors is an integer number (4473512776).

Almost surely, 2^8947025551 is an apocalyptic number.

8947025551 is a deficient number, since it is larger than the sum of its proper divisors (1).

8947025551 is an equidigital number, since it uses as much as digits as its factorization.

8947025551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504000, while the sum is 46.

The square root of 8947025551 is about 94588.7178843228. The cubic root of 8947025551 is about 2075.9946304108.

The spelling of 8947025551 in words is "eight billion, nine hundred forty-seven million, twenty-five thousand, five hundred fifty-one".