287025551 has 2 divisors, whose sum is σ = 287025552. Its totient is φ = 287025550.

The previous prime is 287025517. The next prime is 287025553. The reversal of 287025551 is 155520782.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-287025551 is a prime.

Together with 287025553, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287025553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143512775 + 143512776.

It is an arithmetic number, because the mean of its divisors is an integer number (143512776).

Almost surely, 2^287025551 is an apocalyptic number.

287025551 is a deficient number, since it is larger than the sum of its proper divisors (1).

287025551 is an equidigital number, since it uses as much as digits as its factorization.

287025551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 287025551 is about 16941.8284432348. The cubic root of 287025551 is about 659.6398026916.

The spelling of 287025551 in words is "two hundred eighty-seven million, twenty-five thousand, five hundred fifty-one".