87480553 has 2 divisors, whose sum is σ = 87480554. Its totient is φ = 87480552.

The previous prime is 87480551. The next prime is 87480587. The reversal of 87480553 is 35508478.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55308969 + 32171584 = 7437^2 + 5672^2 .

It is a cyclic number.

It is not a de Polignac number, because 87480553 - 2¹ = 87480551 is a prime.

Together with 87480551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (87480551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43740276 + 43740277.

It is an arithmetic number, because the mean of its divisors is an integer number (43740277).

Almost surely, 2^87480553 is an apocalyptic number.

It is an amenable number.

87480553 is a deficient number, since it is larger than the sum of its proper divisors (1).

87480553 is an equidigital number, since it uses as much as digits as its factorization.

87480553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 87480553 is about 9353.1039232973. The cubic root of 87480553 is about 443.9191087789.

The spelling of 87480553 in words is "eighty-seven million, four hundred eighty thousand, five hundred fifty-three".