56550513 has 8 divisors (see below), whose sum is σ = 75456288. Its totient is φ = 37672544.

The previous prime is 56550499. The next prime is 56550553. The reversal of 56550513 is 31505565.

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 56550513 - 2⁸ = 56550257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56550553) 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, 1620 + ... + 10757.

It is an arithmetic number, because the mean of its divisors is an integer number (9432036).

Almost surely, 2^56550513 is an apocalyptic number.

It is an amenable number.

56550513 is a deficient number, since it is larger than the sum of its proper divisors (18905775).

56550513 is a wasteful number, since it uses less digits than its factorization.

56550513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13903.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 56550513 is about 7520.0075132941. The cubic root of 56550513 is about 383.8358334176.

The spelling of 56550513 in words is "fifty-six million, five hundred fifty thousand, five hundred thirteen".