550455654 has 64 divisors (see below), whose sum is σ = 1302773760. Its totient is φ = 151731360.

The previous prime is 550455649. The next prime is 550455671. The reversal of 550455654 is 456554055.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805597 + ... + 806279.

It is an arithmetic number, because the mean of its divisors is an integer number (20355840).

Almost surely, 2^550455654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550455654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (651386880).

550455654 is an abundant number, since it is smaller than the sum of its proper divisors (752318106).

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

550455654 is a wasteful number, since it uses less digits than its factorization.

550455654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 300000, while the sum is 39.

The square root of 550455654 is about 23461.7913638324. The cubic root of 550455654 is about 819.5474669436.

The spelling of 550455654 in words is "five hundred fifty million, four hundred fifty-five thousand, six hundred fifty-four".