505550214 has 128 divisors (see below), whose sum is σ = 1318464000. Its totient is φ = 142176384.

The previous prime is 505550209. The next prime is 505550219. The reversal of 505550214 is 412055505.

It is an interprime number because it is at equal distance from previous prime (505550209) and next prime (505550219).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505550219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 386149 + ... + 387455.

It is an arithmetic number, because the mean of its divisors is an integer number (10300500).

Almost surely, 2^505550214 is an apocalyptic number.

505550214 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 505550214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (659232000).

505550214 is an abundant number, since it is smaller than the sum of its proper divisors (812913786).

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

505550214 is a wasteful number, since it uses less digits than its factorization.

505550214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379 (or 1373 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 505550214 is about 22484.4438223408. The cubic root of 505550214 is about 796.6265310881.

The spelling of 505550214 in words is "five hundred five million, five hundred fifty thousand, two hundred fourteen".