55698912 has 72 divisors (see below), whose sum is σ = 162705816. Its totient is φ = 18061056.

The previous prime is 55698911. The next prime is 55698913. The reversal of 55698912 is 21989655.

55698912 is a `hidden beast` number, since 5 + 569 + 89 + 1 + 2 = 666.

55698912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55698911) and next prime (55698913).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55698911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8043 + ... + 13269.

It is an arithmetic number, because the mean of its divisors is an integer number (2259803).

Almost surely, 2^55698912 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 55698912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81352908).

55698912 is an abundant number, since it is smaller than the sum of its proper divisors (107006904).

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

55698912 is a wasteful number, since it uses less digits than its factorization.

55698912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5280 (or 5269 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 55698912 is about 7463.1703718996. The cubic root of 55698912 is about 381.8993366146.

The spelling of 55698912 in words is "fifty-five million, six hundred ninety-eight thousand, nine hundred twelve".