505634250 has 128 divisors (see below), whose sum is σ = 1388814336. Its totient is φ = 121512000.

The previous prime is 505634249. The next prime is 505634279. The reversal of 505634250 is 52436505.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1377567 + ... + 1377933.

It is an arithmetic number, because the mean of its divisors is an integer number (10850112).

Almost surely, 2^505634250 is an apocalyptic number.

505634250 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 505634250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (694407168).

505634250 is an abundant number, since it is smaller than the sum of its proper divisors (883180086).

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

505634250 is a wasteful number, since it uses less digits than its factorization.

505634250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 505634250 is about 22486.3125033875. The cubic root of 505634250 is about 796.6706688719.

The spelling of 505634250 in words is "five hundred five million, six hundred thirty-four thousand, two hundred fifty".