61725136 has 20 divisors (see below), whose sum is σ = 130464864. Its totient is φ = 28056800.

The previous prime is 61725133. The next prime is 61725143. The reversal of 61725136 is 63152716.

It is a junction number, because it is equal to n+sod(n) for n = 61725098 and 61725107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61725133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175180 + ... + 175531.

Almost surely, 2^61725136 is an apocalyptic number.

It is an amenable number.

61725136 is an abundant number, since it is smaller than the sum of its proper divisors (68739728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61725136 is a wasteful number, since it uses less digits than its factorization.

61725136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350730 (or 350724 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 61725136 is about 7856.5346050278. The cubic root of 61725136 is about 395.2034117622.

The spelling of 61725136 in words is "sixty-one million, seven hundred twenty-five thousand, one hundred thirty-six".