55733015280 has 160 divisors (see below), whose sum is σ = 174445977600. Its totient is φ = 14718606336.

The previous prime is 55733015251. The next prime is 55733015281. The reversal of 55733015280 is 8251033755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55733015281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21609031 + ... + 21611609.

It is an arithmetic number, because the mean of its divisors is an integer number (1090287360).

Almost surely, 2^55733015280 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 55733015280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87222988800).

55733015280 is an abundant number, since it is smaller than the sum of its proper divisors (118712962320).

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

55733015280 is a wasteful number, since it uses less digits than its factorization.

55733015280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3431 (or 3425 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The spelling of 55733015280 in words is "fifty-five billion, seven hundred thirty-three million, fifteen thousand, two hundred eighty".