55233604823040 has 2016 divisors, whose sum is σ = 238647798305280. Its totient is φ = 12215063347200.

The previous prime is 55233604823021. The next prime is 55233604823051. The reversal of 55233604823040 is 4032840633255.

55233604823040 is a `hidden beast` number, since 5 + 5 + 2 + 3 + 3 + 604 + 8 + 2 + 30 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2016).

It is a super-2 number, since 2×55233604823040² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 11339271805 + ... + 11339276675.

It is an arithmetic number, because the mean of its divisors is an integer number (118376884080).

Almost surely, 2^{55233604823040} 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 55233604823040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119323899152640).

55233604823040 is an abundant number, since it is smaller than the sum of its proper divisors (183414193482240).

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

55233604823040 is an equidigital number, since it uses as much as digits as its factorization.

55233604823040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961 (or 4919 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 55233604823040 in words is "fifty-five trillion, two hundred thirty-three billion, six hundred four million, eight hundred twenty-three thousand, forty".