61725635 has 4 divisors (see below), whose sum is σ = 74070768. Its totient is φ = 49380504.

The previous prime is 61725611. The next prime is 61725641. The reversal of 61725635 is 53652716.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61725635 - 2⁸ = 61725379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61725595 and 61725604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6172559 + ... + 6172568.

It is an arithmetic number, because the mean of its divisors is an integer number (18517692).

Almost surely, 2^61725635 is an apocalyptic number.

61725635 is a deficient number, since it is larger than the sum of its proper divisors (12345133).

61725635 is a wasteful number, since it uses less digits than its factorization.

61725635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12345132.

The product of its digits is 37800, while the sum is 35.

The square root of 61725635 is about 7856.5663619675. The cubic root of 61725635 is about 395.2044767307.

The spelling of 61725635 in words is "sixty-one million, seven hundred twenty-five thousand, six hundred thirty-five".