550455101 has 4 divisors (see below), whose sum is σ = 629091552. Its totient is φ = 471818652.

The previous prime is 550455071. The next prime is 550455109. The reversal of 550455101 is 101554055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 550455101 - 2¹⁸ = 550192957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550455109) 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, 39318215 + ... + 39318228.

It is an arithmetic number, because the mean of its divisors is an integer number (157272888).

Almost surely, 2^550455101 is an apocalyptic number.

It is an amenable number.

550455101 is a deficient number, since it is larger than the sum of its proper divisors (78636451).

550455101 is an equidigital number, since it uses as much as digits as its factorization.

550455101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78636450.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 550455101 is about 23461.7795787106. The cubic root of 550455101 is about 819.5471924983.

The spelling of 550455101 in words is "five hundred fifty million, four hundred fifty-five thousand, one hundred one".