55711544 has 64 divisors (see below), whose sum is σ = 124277760. Its totient is φ = 22919040.

The previous prime is 55711501. The next prime is 55711561. The reversal of 55711544 is 44511755.

It is a super-2 number, since 2×55711544² = 6207552269727872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55711544.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160379 + ... + 160725.

It is an arithmetic number, because the mean of its divisors is an integer number (1941840).

Almost surely, 2^55711544 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 55711544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62138880).

55711544 is an abundant number, since it is smaller than the sum of its proper divisors (68566216).

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

55711544 is a wasteful number, since it uses less digits than its factorization.

55711544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 464 counting only the distinct ones).

The product of its digits is 14000, while the sum is 32.

The square root of 55711544 is about 7464.0166130576. The cubic root of 55711544 is about 381.9282048492.

The spelling of 55711544 in words is "fifty-five million, seven hundred eleven thousand, five hundred forty-four".