550025502621 has 32 divisors (see below), whose sum is σ = 842426949888. Its totient is φ = 312693473280.

The previous prime is 550025502617. The next prime is 550025502701. The reversal of 550025502621 is 126205520055.

It is not a de Polignac number, because 550025502621 - 2² = 550025502617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550025502421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4368871 + ... + 4493003.

It is an arithmetic number, because the mean of its divisors is an integer number (26325842184).

Almost surely, 2^550025502621 is an apocalyptic number.

It is an amenable number.

550025502621 is a deficient number, since it is larger than the sum of its proper divisors (292401447267).

550025502621 is a wasteful number, since it uses less digits than its factorization.

550025502621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125221.

The product of its (nonzero) digits is 30000, while the sum is 33.

The spelling of 550025502621 in words is "five hundred fifty billion, twenty-five million, five hundred two thousand, six hundred twenty-one".