55320315 has 8 divisors (see below), whose sum is σ = 88512528. Its totient is φ = 29504160.

The previous prime is 55320299. The next prime is 55320319. The reversal of 55320315 is 51302355.

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

It is not a de Polignac number, because 55320315 - 2⁴ = 55320299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55320319) 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, 1843996 + ... + 1844025.

It is an arithmetic number, because the mean of its divisors is an integer number (11064066).

Almost surely, 2^55320315 is an apocalyptic number.

55320315 is a deficient number, since it is larger than the sum of its proper divisors (33192213).

55320315 is a wasteful number, since it uses less digits than its factorization.

55320315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688029.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 55320315 is about 7437.7627684674. The cubic root of 55320315 is about 381.0320858064.

The spelling of 55320315 in words is "fifty-five million, three hundred twenty thousand, three hundred fifteen".