55443696 has 120 divisors (see below), whose sum is σ = 181845504. Its totient is φ = 14394240.

The previous prime is 55443683. The next prime is 55443733. The reversal of 55443696 is 69634455.

It is a super-2 number, since 2×55443696² = 6148006852280832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24801 + ... + 26943.

Almost surely, 2^55443696 is an apocalyptic number.

55443696 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55443696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90922752).

55443696 is an abundant number, since it is smaller than the sum of its proper divisors (126401808).

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

55443696 is a wasteful number, since it uses less digits than its factorization.

55443696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2166 counting only the distinct ones).

The product of its digits is 388800, while the sum is 42.

The square root of 55443696 is about 7446.0523769310. The cubic root of 55443696 is about 381.3151476594.

The spelling of 55443696 in words is "fifty-five million, four hundred forty-three thousand, six hundred ninety-six".