55006519 has 8 divisors (see below), whose sum is σ = 55701792. Its totient is φ = 54314400.

The previous prime is 55006517. The next prime is 55006559. The reversal of 55006519 is 91560055.

55006519 = 266² + 267² + ... + 568².

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55006519 - 2¹ = 55006517 is a prime.

It is a super-2 number, since 2×55006519² = 6051434264994722, 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 (55006513) 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, 73662 + ... + 74404.

It is an arithmetic number, because the mean of its divisors is an integer number (6962724).

Almost surely, 2^55006519 is an apocalyptic number.

55006519 is a deficient number, since it is larger than the sum of its proper divisors (695273).

55006519 is a wasteful number, since it uses less digits than its factorization.

55006519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 55006519 is about 7416.6379849633. The cubic root of 55006519 is about 380.3102706020.

The spelling of 55006519 in words is "fifty-five million, six thousand, five hundred nineteen".