55708318 has 4 divisors (see below), whose sum is σ = 83562480. Its totient is φ = 27854158.

The previous prime is 55708307. The next prime is 55708319. The reversal of 55708318 is 81380755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81380755 = 5 ⋅16276151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55708319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13927078 + ... + 13927081.

It is an arithmetic number, because the mean of its divisors is an integer number (20890620).

Almost surely, 2^55708318 is an apocalyptic number.

55708318 is a deficient number, since it is larger than the sum of its proper divisors (27854162).

55708318 is a wasteful number, since it uses less digits than its factorization.

55708318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27854161.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 55708318 is about 7463.8005064444. The cubic root of 55708318 is about 381.9208328034.

The spelling of 55708318 in words is "fifty-five million, seven hundred eight thousand, three hundred eighteen".