The square root of 305026225 is 17465.
It is a self number, because there is not a number n which added to its sum of digits gives 305026225.
It is an unprimeable number.
Almost surely, 2305026225 is an apocalyptic number.
305026225 is a gapful number since it is divisible by the number (35) formed by its first and last digit.
305026225 is the 17465-th square number.
305026225 is the 8733-rd centered octagonal number.
It is an amenable number.
305026225 is an frugal number, since it uses more digits than its factorization.
305026225 is an odious number, because the sum of its binary digits is odd.
The cubic root of 305026225 is about 673.1508419330.
Multiplying 305026225 by its sum of digits (25), we get a square (7625655625 = 873252).
305026225 divided by its sum of digits (25) gives a square (12201049 = 34932).
Multiplying 305026225 by its product of nonzero digits (3600), we get a square (1098094410000 = 10479002).
Adding to 305026225 its reverse (522620503), we get a palindrome (827646728).
The spelling of 305026225 in words is "three hundred five million, twenty-six thousand, two hundred twenty-five".