61444550 has 12 divisors (see below), whose sum is σ = 114286956. Its totient is φ = 24577800.

The previous prime is 61444519. The next prime is 61444571. The reversal of 61444550 is 5544416.

61444550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 614396 + ... + 614495.

It is an arithmetic number, because the mean of its divisors is an integer number (9523913).

Almost surely, 2^61444550 is an apocalyptic number.

61444550 is a deficient number, since it is larger than the sum of its proper divisors (52842406).

61444550 is a wasteful number, since it uses less digits than its factorization.

61444550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228903 (or 1228898 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 61444550 is about 7838.6574105519. The cubic root of 61444550 is about 394.6036723338.

Adding to 61444550 its reverse (5544416), we get a palindrome (66988966).

The spelling of 61444550 in words is "sixty-one million, four hundred forty-four thousand, five hundred fifty".