61227500 has 60 divisors (see below), whose sum is σ = 141048600. Its totient is φ = 23184000.

The previous prime is 61227457. The next prime is 61227601. The reversal of 61227500 is 572216.

61227500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46856 + ... + 48144.

It is an arithmetic number, because the mean of its divisors is an integer number (2350810).

Almost surely, 2^61227500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61227500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70524300).

61227500 is an abundant number, since it is smaller than the sum of its proper divisors (79821100).

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

61227500 is a wasteful number, since it uses less digits than its factorization.

61227500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332 (or 1315 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 61227500 is about 7824.8003169410. The cubic root of 61227500 is about 394.1384844774.

Adding to 61227500 its reverse (572216), we get a palindrome (61799716).

The spelling of 61227500 in words is "sixty-one million, two hundred twenty-seven thousand, five hundred".