61536544 has 12 divisors (see below), whose sum is σ = 121150134. Its totient is φ = 30768256.

The previous prime is 61536511. The next prime is 61536547. The reversal of 61536544 is 44563516.

61536544 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 only one way, i.e., 60652944 + 883600 = 7788^2 + 940^2 .

It is not an unprimeable number, because it can be changed into a prime (61536547) 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 as a sum of consecutive naturals, namely, 961477 + ... + 961540.

Almost surely, 2^61536544 is an apocalyptic number.

It is an amenable number.

61536544 is a deficient number, since it is larger than the sum of its proper divisors (59613590).

61536544 is a wasteful number, since it uses less digits than its factorization.

61536544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923027 (or 1923019 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 61536544 is about 7844.5231849998. The cubic root of 61536544 is about 394.8005060033.

The spelling of 61536544 in words is "sixty-one million, five hundred thirty-six thousand, five hundred forty-four".