55719936 has 72 divisors (see below), whose sum is σ = 160982640. Its totient is φ = 18567168.

The previous prime is 55719919. The next prime is 55719941. The reversal of 55719936 is 63991755.

55719936 is a `hidden beast` number, since 557 + 1 + 9 + 93 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×55719936² = 6209422535688192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55719891 and 55719900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16921 + ... + 19943.

It is an arithmetic number, because the mean of its divisors is an integer number (2235870).

Almost surely, 2^55719936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55719936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80491320).

55719936 is an abundant number, since it is smaller than the sum of its proper divisors (105262704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55719936 is a wasteful number, since it uses less digits than its factorization.

55719936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051 (or 3028 counting only the distinct ones).

The product of its digits is 255150, while the sum is 45.

The square root of 55719936 is about 7464.5787556968. The cubic root of 55719936 is about 381.9473808904.

The spelling of 55719936 in words is "fifty-five million, seven hundred nineteen thousand, nine hundred thirty-six".