61395625 has 20 divisors (see below), whose sum is σ = 80074368. Its totient is φ = 46970000.

The previous prime is 61395623. The next prime is 61395629. The reversal of 61395625 is 52659316.

61395625 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 61395625 - 2¹ = 61395623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61395623) 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 19 ways as a sum of consecutive naturals, for example, 12240 + ... + 16510.

Almost surely, 2^61395625 is an apocalyptic number.

It is an amenable number.

61395625 is a deficient number, since it is larger than the sum of its proper divisors (18678743).

61395625 is an equidigital number, since it uses as much as digits as its factorization.

61395625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314 (or 4299 counting only the distinct ones).

The product of its digits is 48600, while the sum is 37.

The square root of 61395625 is about 7835.5360378215. The cubic root of 61395625 is about 394.4989106094.

The spelling of 61395625 in words is "sixty-one million, three hundred ninety-five thousand, six hundred twenty-five".