55021750896 has 80 divisors (see below), whose sum is σ = 162779216384. Its totient is φ = 15688173312.

The previous prime is 55021750873. The next prime is 55021750957. The reversal of 55021750896 is 69805712055.

It is a happy number.

55021750896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55021750896² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 4495 + ... + 331758.

Almost surely, 2^55021750896 is an apocalyptic number.

55021750896 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 55021750896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81389608192).

55021750896 is an abundant number, since it is smaller than the sum of its proper divisors (107757465488).

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

55021750896 is a wasteful number, since it uses less digits than its factorization.

55021750896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336758 (or 336752 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 48.

The spelling of 55021750896 in words is "fifty-five billion, twenty-one million, seven hundred fifty thousand, eight hundred ninety-six".