61004445 has 32 divisors (see below), whose sum is σ = 99532800. Its totient is φ = 31901760.

The previous prime is 61004369. The next prime is 61004467. The reversal of 61004445 is 54440016.

It is not a de Polignac number, because 61004445 - 2⁸ = 61004189 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306456 + ... + 306654.

It is an arithmetic number, because the mean of its divisors is an integer number (3110400).

Almost surely, 2^61004445 is an apocalyptic number.

It is an amenable number.

61004445 is a deficient number, since it is larger than the sum of its proper divisors (38528355).

61004445 is a wasteful number, since it uses less digits than its factorization.

61004445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 61004445 is about 7810.5342326886. The cubic root of 61004445 is about 393.6592796791.

The spelling of 61004445 in words is "sixty-one million, four thousand, four hundred forty-five".