61785625 has 60 divisors (see below), whose sum is σ = 91408240. Its totient is φ = 41580000.

The previous prime is 61785601. The next prime is 61785629. The reversal of 61785625 is 52658716.

It is not a de Polignac number, because 61785625 - 2⁵ = 61785593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61785629) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1436854 + ... + 1436896.

Almost surely, 2^61785625 is an apocalyptic number.

It is an amenable number.

61785625 is a deficient number, since it is larger than the sum of its proper divisors (29622615).

61785625 is a wasteful number, since it uses less digits than its factorization.

61785625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 78 counting only the distinct ones).

The product of its digits is 100800, while the sum is 40.

The square root of 61785625 is about 7860.3832603760. The cubic root of 61785625 is about 395.3324659103.

The spelling of 61785625 in words is "sixty-one million, seven hundred eighty-five thousand, six hundred twenty-five".