61366025 has 12 divisors (see below), whose sum is σ = 86964672. Its totient is φ = 42079440.

The previous prime is 61366021. The next prime is 61366043. The reversal of 61366025 is 52066316.

61366025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61366025 - 2² = 61366021 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61366021) 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 11 ways as a sum of consecutive naturals, for example, 175157 + ... + 175506.

It is an arithmetic number, because the mean of its divisors is an integer number (7247056).

Almost surely, 2^61366025 is an apocalyptic number.

It is an amenable number.

61366025 is a deficient number, since it is larger than the sum of its proper divisors (25598647).

61366025 is a wasteful number, since it uses less digits than its factorization.

61366025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350680 (or 350675 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 61366025 is about 7833.6469795364. The cubic root of 61366025 is about 394.4355019390.

The spelling of 61366025 in words is "sixty-one million, three hundred sixty-six thousand, twenty-five".