61504444 has 12 divisors (see below), whose sum is σ = 113297800. Its totient is φ = 29133648.

The previous prime is 61504427. The next prime is 61504477. The reversal of 61504444 is 44440516.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404559 + ... + 404710.

Almost surely, 2^61504444 is an apocalyptic number.

It is an amenable number.

61504444 is a deficient number, since it is larger than the sum of its proper divisors (51793356).

61504444 is a wasteful number, since it uses less digits than its factorization.

61504444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809292 (or 809290 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 61504444 is about 7842.4769046520. The cubic root of 61504444 is about 394.7318459862.

The spelling of 61504444 in words is "sixty-one million, five hundred four thousand, four hundred forty-four".