56617613 has 8 divisors (see below), whose sum is σ = 61883808. Its totient is φ = 51481584.

The previous prime is 56617573. The next prime is 56617637. The reversal of 56617613 is 31671665.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 56617613 - 2¹⁶ = 56552077 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 (56617643) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31631 + ... + 33372.

It is an arithmetic number, because the mean of its divisors is an integer number (7735476).

Almost surely, 2^56617613 is an apocalyptic number.

It is an amenable number.

56617613 is a deficient number, since it is larger than the sum of its proper divisors (5266195).

56617613 is a wasteful number, since it uses less digits than its factorization.

56617613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65083.

The product of its digits is 22680, while the sum is 35.

The square root of 56617613 is about 7524.4676223637. The cubic root of 56617613 is about 383.9875868564.

The spelling of 56617613 in words is "fifty-six million, six hundred seventeen thousand, six hundred thirteen".