455009550 has 72 divisors (see below), whose sum is σ = 1143839736. Its totient is φ = 119695680.

The previous prime is 455009519. The next prime is 455009561. The reversal of 455009550 is 55900554.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2898072 + ... + 2898228.

It is an arithmetic number, because the mean of its divisors is an integer number (15886663).

Almost surely, 2^455009550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 455009550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (571919868).

455009550 is an abundant number, since it is smaller than the sum of its proper divisors (688830186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

455009550 is a wasteful number, since it uses less digits than its factorization.

455009550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 455009550 is about 21330.9528619797. The cubic root of 455009550 is about 769.1425492033.

The spelling of 455009550 in words is "four hundred fifty-five million, nine thousand, five hundred fifty".