55719 has 12 divisors (see below), whose sum is σ = 82992. Its totient is φ = 36000.

The previous prime is 55717. The next prime is 55721. The reversal of 55719 is 91755.

It is an interprime number because it is at equal distance from previous prime (55717) and next prime (55721).

It is not a de Polignac number, because 55719 - 2¹ = 55717 is a prime.

It is a super-2 number, since 2×55719² = 6209213922, which contains 22 as substring.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 55692 and 55701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294 + ... + 444.

It is an arithmetic number, because the mean of its divisors is an integer number (6916).

2⁵⁵⁷¹⁹ is an apocalyptic number.

55719 is a deficient number, since it is larger than the sum of its proper divisors (27273).

55719 is a wasteful number, since it uses less digits than its factorization.

55719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 195 counting only the distinct ones).

The product of its digits is 1575, while the sum is 27.

The square root of 55719 is about 236.0487237839. The cubic root of 55719 is about 38.1945242190.

It can be divided in two parts, 557 and 19, that added together give a square (576 = 24²).

The spelling of 55719 in words is "fifty-five thousand, seven hundred nineteen".