55908319 has 4 divisors (see below), whose sum is σ = 56049544. Its totient is φ = 55767096.

The previous prime is 55908301. The next prime is 55908329. The reversal of 55908319 is 91380955.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55908319 - 2⁷ = 55908191 is a prime.

It is a super-2 number, since 2×55908319² = 6251480266811522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55908329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70017 + ... + 70810.

It is an arithmetic number, because the mean of its divisors is an integer number (14012386).

Almost surely, 2^55908319 is an apocalyptic number.

55908319 is a deficient number, since it is larger than the sum of its proper divisors (141225).

55908319 is a wasteful number, since it uses less digits than its factorization.

55908319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141224.

The product of its (nonzero) digits is 48600, while the sum is 40.

The square root of 55908319 is about 7477.1865698269. The cubic root of 55908319 is about 382.3773374604.

The spelling of 55908319 in words is "fifty-five million, nine hundred eight thousand, three hundred nineteen".