61945250 has 16 divisors (see below), whose sum is σ = 115961976. Its totient is φ = 24778000.

The previous prime is 61945237. The next prime is 61945283. The reversal of 61945250 is 5254916.

It is a happy number.

61945250 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 4 ways, for example, as 20097289 + 41847961 = 4483^2 + 6469^2 .

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 7 ways as a sum of consecutive naturals, for example, 123641 + ... + 124140.

Almost surely, 2^61945250 is an apocalyptic number.

61945250 is a deficient number, since it is larger than the sum of its proper divisors (54016726).

61945250 is a wasteful number, since it uses less digits than its factorization.

61945250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247798 (or 247788 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 61945250 is about 7870.5304776743. The cubic root of 61945250 is about 395.6726242035.

The spelling of 61945250 in words is "sixty-one million, nine hundred forty-five thousand, two hundred fifty".