61717125 has 32 divisors (see below), whose sum is σ = 106030080. Its totient is φ = 31848000.

The previous prime is 61717087. The next prime is 61717129. The reversal of 61717125 is 52171716.

It is not a de Polignac number, because 61717125 - 2⁸ = 61716869 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 61717092 and 61717101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61717129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8971 + ... + 14279.

It is an arithmetic number, because the mean of its divisors is an integer number (3313440).

Almost surely, 2^61717125 is an apocalyptic number.

It is an amenable number.

61717125 is a deficient number, since it is larger than the sum of its proper divisors (44312955).

61717125 is a wasteful number, since it uses less digits than its factorization.

61717125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358 (or 5348 counting only the distinct ones).

The product of its digits is 2940, while the sum is 30.

The square root of 61717125 is about 7856.0247581076. The cubic root of 61717125 is about 395.1863138574.

The spelling of 61717125 in words is "sixty-one million, seven hundred seventeen thousand, one hundred twenty-five".