55306315 has 8 divisors (see below), whose sum is σ = 66410928. Its totient is φ = 44216160.

The previous prime is 55306309. The next prime is 55306319. The reversal of 55306315 is 51360355.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-55306315 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55306319) 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, 8505 + ... + 13525.

It is an arithmetic number, because the mean of its divisors is an integer number (8301366).

Almost surely, 2^55306315 is an apocalyptic number.

55306315 is a deficient number, since it is larger than the sum of its proper divisors (11104613).

55306315 is a wasteful number, since it uses less digits than its factorization.

55306315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7229.

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 55306315 is about 7436.8215656959. The cubic root of 55306315 is about 380.9999402962. Note that the first 4 decimals are identical.

The spelling of 55306315 in words is "fifty-five million, three hundred six thousand, three hundred fifteen".