550402101 has 16 divisors (see below), whose sum is σ = 832761600. Its totient is φ = 359126784.

The previous prime is 550402093. The next prime is 550402123. The reversal of 550402101 is 101204055.

It is not a de Polignac number, because 550402101 - 2³ = 550402093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550402001) 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, 215596 + ... + 218133.

It is an arithmetic number, because the mean of its divisors is an integer number (52047600).

Almost surely, 2^550402101 is an apocalyptic number.

It is an amenable number.

550402101 is a deficient number, since it is larger than the sum of its proper divisors (282359499).

550402101 is a wasteful number, since it uses less digits than its factorization.

550402101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433785 (or 433779 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 550402101 is about 23460.6500549324. The cubic root of 550402101 is about 819.5208885695.

Adding to 550402101 its reverse (101204055), we get a palindrome (651606156).

The spelling of 550402101 in words is "five hundred fifty million, four hundred two thousand, one hundred one".