55127646 has 48 divisors (see below), whose sum is σ = 139308000. Its totient is φ = 15748992.

The previous prime is 55127621. The next prime is 55127647. The reversal of 55127646 is 64672155.

It is a happy number.

55127646 is a `hidden beast` number, since 5 + 5 + 1 + 2 + 7 + 646 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55127646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55127647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1710 + ... + 10638.

It is an arithmetic number, because the mean of its divisors is an integer number (2902250).

Almost surely, 2^55127646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55127646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69654000).

55127646 is an abundant number, since it is smaller than the sum of its proper divisors (84180354).

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

55127646 is a wasteful number, since it uses less digits than its factorization.

55127646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958 (or 8941 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 55127646 is about 7424.7993912294. The cubic root of 55127646 is about 380.5892197837.

The spelling of 55127646 in words is "fifty-five million, one hundred twenty-seven thousand, six hundred forty-six".