55320506 has 8 divisors (see below), whose sum is σ = 83715444. Its totient is φ = 27415360.

The previous prime is 55320481. The next prime is 55320541. The reversal of 55320506 is 60502355.

It can be written as a sum of positive squares in 2 ways, for example, as 33744481 + 21576025 = 5809^2 + 4645^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122165 + ... + 122616.

Almost surely, 2^55320506 is an apocalyptic number.

55320506 is a deficient number, since it is larger than the sum of its proper divisors (28394938).

55320506 is a wasteful number, since it uses less digits than its factorization.

55320506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244896.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 55320506 is about 7437.7756083388. The cubic root of 55320506 is about 381.0325243256.

The spelling of 55320506 in words is "fifty-five million, three hundred twenty thousand, five hundred six".