61356250 has 24 divisors (see below), whose sum is σ = 115047324. Its totient is φ = 24540000.

The previous prime is 61356221. The next prime is 61356259. The reversal of 61356250 is 5265316.

61356250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 361 + 61355889 = 19^2 + 7833^2 .

It is not an unprimeable number, because it can be changed into a prime (61356259) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1342 + ... + 11158.

Almost surely, 2^61356250 is an apocalyptic number.

61356250 is a deficient number, since it is larger than the sum of its proper divisors (53691074).

61356250 is an frugal number, since it uses more digits than its factorization.

61356250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9844 (or 9824 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 61356250 is about 7833.0230434999. The cubic root of 61356250 is about 394.4145576039.

The spelling of 61356250 in words is "sixty-one million, three hundred fifty-six thousand, two hundred fifty".