87488551 has 2 divisors, whose sum is σ = 87488552. Its totient is φ = 87488550.

The previous prime is 87488549. The next prime is 87488561. The reversal of 87488551 is 15588478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 87488551 - 2¹ = 87488549 is a prime.

Together with 87488549, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87488561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43744275 + 43744276.

It is an arithmetic number, because the mean of its divisors is an integer number (43744276).

Almost surely, 2^87488551 is an apocalyptic number.

87488551 is a deficient number, since it is larger than the sum of its proper divisors (1).

87488551 is an equidigital number, since it uses as much as digits as its factorization.

87488551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 358400, while the sum is 46.

The square root of 87488551 is about 9353.5314721232. The cubic root of 87488551 is about 443.9326369545.

The spelling of 87488551 in words is "eighty-seven million, four hundred eighty-eight thousand, five hundred fifty-one".