553240636787 has 4 divisors (see below), whose sum is σ = 558411110136. Its totient is φ = 548070163440.

The previous prime is 553240636763. The next prime is 553240636843. The reversal of 553240636787 is 787636042355.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 553240636787 - 2⁶ = 553240636723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553240636757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585236514 + ... + 2585236727.

It is an arithmetic number, because the mean of its divisors is an integer number (139602777534).

Almost surely, 2^553240636787 is an apocalyptic number.

553240636787 is a deficient number, since it is larger than the sum of its proper divisors (5170473349).

553240636787 is a wasteful number, since it uses less digits than its factorization.

553240636787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5170473348.

The product of its (nonzero) digits is 25401600, while the sum is 56.

The spelling of 553240636787 in words is "five hundred fifty-three billion, two hundred forty million, six hundred thirty-six thousand, seven hundred eighty-seven".