553617987 has 16 divisors (see below), whose sum is σ = 795674880. Its totient is φ = 340372512.

The previous prime is 553617979. The next prime is 553617997. The reversal of 553617987 is 789716355.

553617987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 553617987 - 2³ = 553617979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (553617997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40314 + ... + 52272.

It is an arithmetic number, because the mean of its divisors is an integer number (49729680).

Almost surely, 2^553617987 is an apocalyptic number.

553617987 is a deficient number, since it is larger than the sum of its proper divisors (242056893).

553617987 is a wasteful number, since it uses less digits than its factorization.

553617987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13162.

The product of its digits is 1587600, while the sum is 51.

The square root of 553617987 is about 23529.0881038769. The cubic root of 553617987 is about 821.1138872624.

The spelling of 553617987 in words is "five hundred fifty-three million, six hundred seventeen thousand, nine hundred eighty-seven".