55717308 has 60 divisors (see below), whose sum is σ = 146361600. Its totient is φ = 18482688.

The previous prime is 55717307. The next prime is 55717327. The reversal of 55717308 is 80371755.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55717307) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 123868 + ... + 124316.

It is an arithmetic number, because the mean of its divisors is an integer number (2439360).

Almost surely, 2^55717308 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55717308, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73180800).

55717308 is an abundant number, since it is smaller than the sum of its proper divisors (90644292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55717308 is a wasteful number, since it uses less digits than its factorization.

55717308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 36.

The square root of 55717308 is about 7464.4027222545. The cubic root of 55717308 is about 381.9413760169.

The spelling of 55717308 in words is "fifty-five million, seven hundred seventeen thousand, three hundred eight".