61066625 has 16 divisors (see below), whose sum is σ = 76449360. Its totient is φ = 48700800.

The previous prime is 61066619. The next prime is 61066637. The reversal of 61066625 is 52666016.

61066625 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 8 ways, for example, as 10029889 + 51036736 = 3167^2 + 7144^2 .

It is not a de Polignac number, because 61066625 - 2⁴ = 61066609 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61066591 and 61066600.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 56591 + ... + 57659.

It is an arithmetic number, because the mean of its divisors is an integer number (4778085).

Almost surely, 2^61066625 is an apocalyptic number.

It is an amenable number.

61066625 is a deficient number, since it is larger than the sum of its proper divisors (15382735).

61066625 is a wasteful number, since it uses less digits than its factorization.

61066625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541 (or 1531 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 61066625 is about 7814.5137404704. The cubic root of 61066625 is about 393.7929826261.

The spelling of 61066625 in words is "sixty-one million, sixty-six thousand, six hundred twenty-five".