61696625 has 8 divisors (see below), whose sum is σ = 76997544. Its totient is φ = 49357200.

The previous prime is 61696619. The next prime is 61696627. The reversal of 61696625 is 52669616.

It can be written as a sum of positive squares in 4 ways, for example, as 14691889 + 47004736 = 3833^2 + 6856^2 .

It is not a de Polignac number, because 61696625 - 2⁶ = 61696561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61696627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246662 + ... + 246911.

It is an arithmetic number, because the mean of its divisors is an integer number (9624693).

Almost surely, 2^61696625 is an apocalyptic number.

It is an amenable number.

61696625 is a deficient number, since it is larger than the sum of its proper divisors (15300919).

61696625 is an equidigital number, since it uses as much as digits as its factorization.

61696625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493588 (or 493578 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 61696625 is about 7854.7199186222. The cubic root of 61696625 is about 395.1425538984.

The spelling of 61696625 in words is "sixty-one million, six hundred ninety-six thousand, six hundred twenty-five".