55313333040 has 160 divisors (see below), whose sum is σ = 196691982336. Its totient is φ = 12596290560.

The previous prime is 55313332999. The next prime is 55313333051. The reversal of 55313333040 is 4033331355.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 55313332989 and 55313333007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 394534 + ... + 516026.

Almost surely, 2^55313333040 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 55313333040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98345991168).

55313333040 is an abundant number, since it is smaller than the sum of its proper divisors (141378649296).

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

55313333040 is a wasteful number, since it uses less digits than its factorization.

55313333040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121787 (or 121781 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 30.

Adding to 55313333040 its reverse (4033331355), we get a palindrome (59346664395).

The spelling of 55313333040 in words is "fifty-five billion, three hundred thirteen million, three hundred thirty-three thousand, forty".