61549713 has 24 divisors (see below), whose sum is σ = 92668576. Its totient is φ = 40824000.

The previous prime is 61549711. The next prime is 61549723. The reversal of 61549713 is 31794516.

61549713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61549713 - 2¹ = 61549711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61549711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58038 + ... + 59088.

Almost surely, 2^61549713 is an apocalyptic number.

It is an amenable number.

61549713 is a deficient number, since it is larger than the sum of its proper divisors (31118863).

61549713 is a wasteful number, since it uses less digits than its factorization.

61549713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1295 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 61549713 is about 7845.3625155247. The cubic root of 61549713 is about 394.8286668147.

The spelling of 61549713 in words is "sixty-one million, five hundred forty-nine thousand, seven hundred thirteen".