550772620787 has 4 divisors (see below), whose sum is σ = 579760653480. Its totient is φ = 521784588096.

The previous prime is 550772620751. The next prime is 550772620793. The reversal of 550772620787 is 787026277055.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550772620787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (550772620747) 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, 14494016318 + ... + 14494016355.

It is an arithmetic number, because the mean of its divisors is an integer number (144940163370).

Almost surely, 2^550772620787 is an apocalyptic number.

550772620787 is a deficient number, since it is larger than the sum of its proper divisors (28988032693).

550772620787 is a wasteful number, since it uses less digits than its factorization.

550772620787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28988032692.

The product of its (nonzero) digits is 11524800, while the sum is 56.

The spelling of 550772620787 in words is "five hundred fifty billion, seven hundred seventy-two million, six hundred twenty thousand, seven hundred eighty-seven".