55717313 has 16 divisors (see below), whose sum is σ = 60217344. Its totient is φ = 51367680.

The previous prime is 55717307. The next prime is 55717327. The reversal of 55717313 is 31371755.

It is a cyclic number.

It is not a de Polignac number, because 55717313 - 2⁴ = 55717297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55717313.

It is not an unprimeable number, because it can be changed into a prime (55717373) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282731 + ... + 282927.

It is an arithmetic number, because the mean of its divisors is an integer number (3763584).

Almost surely, 2^55717313 is an apocalyptic number.

It is an amenable number.

55717313 is a deficient number, since it is larger than the sum of its proper divisors (4500031).

55717313 is a wasteful number, since it uses less digits than its factorization.

55717313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its digits is 11025, while the sum is 32.

The square root of 55717313 is about 7464.4030571774. The cubic root of 55717313 is about 381.9413874419.

The spelling of 55717313 in words is "fifty-five million, seven hundred seventeen thousand, three hundred thirteen".