61655413 has 8 divisors (see below), whose sum is σ = 66389760. Its totient is φ = 57044160.

The previous prime is 61655401. The next prime is 61655417. The reversal of 61655413 is 31455616.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61655413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61655417) 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, 29733 + ... + 31738.

It is an arithmetic number, because the mean of its divisors is an integer number (8298720).

Almost surely, 2^61655413 is an apocalyptic number.

It is an amenable number.

61655413 is a deficient number, since it is larger than the sum of its proper divisors (4734347).

61655413 is a wasteful number, since it uses less digits than its factorization.

61655413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61547.

The product of its digits is 10800, while the sum is 31.

The square root of 61655413 is about 7852.0960895802. The cubic root of 61655413 is about 395.0545520982.

The spelling of 61655413 in words is "sixty-one million, six hundred fifty-five thousand, four hundred thirteen".