61045025 has 6 divisors (see below), whose sum is σ = 75695862. Its totient is φ = 48836000.

The previous prime is 61045003. The next prime is 61045027. The reversal of 61045025 is 52054016.

61045025 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 3 ways, for example, as 4133089 + 56911936 = 2033^2 + 7544^2 .

It is not a de Polignac number, because 61045025 - 2⁶ = 61044961 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61045027) 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 in 5 ways as a sum of consecutive naturals, for example, 1220876 + ... + 1220925.

It is an arithmetic number, because the mean of its divisors is an integer number (12615977).

Almost surely, 2^61045025 is an apocalyptic number.

It is an amenable number.

61045025 is a deficient number, since it is larger than the sum of its proper divisors (14650837).

61045025 is a wasteful number, since it uses less digits than its factorization.

61045025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441811 (or 2441806 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 61045025 is about 7813.1315744713. The cubic root of 61045025 is about 393.7465473788.

The spelling of 61045025 in words is "sixty-one million, forty-five thousand, twenty-five".