55050450 has 192 divisors, whose sum is σ = 174155520. Its totient is φ = 11197440.

The previous prime is 55050419. The next prime is 55050491. The reversal of 55050450 is 5405055.

It is a self number, because there is not a number n which added to its sum of digits gives 55050450.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 504996 + ... + 505104.

It is an arithmetic number, because the mean of its divisors is an integer number (907060).

Almost surely, 2^55050450 is an apocalyptic number.

55050450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 55050450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87077760).

55050450 is an abundant number, since it is smaller than the sum of its proper divisors (119105070).

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

55050450 is a wasteful number, since it uses less digits than its factorization.

55050450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 55050450 is about 7419.5990457706. The cubic root of 55050450 is about 380.4114886938.

The spelling of 55050450 in words is "fifty-five million, fifty thousand, four hundred fifty".