5155388320 has 96 divisors (see below), whose sum is σ = 12398641920. Its totient is φ = 2025354240.

The previous prime is 5155388269. The next prime is 5155388321. The reversal of 5155388320 is 238835515.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (5155388321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2666074 + ... + 2668006.

It is an arithmetic number, because the mean of its divisors is an integer number (129152520).

Almost surely, 2^5155388320 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 5155388320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6199320960).

5155388320 is an abundant number, since it is smaller than the sum of its proper divisors (7243253600).

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

5155388320 is a wasteful number, since it uses less digits than its factorization.

5155388320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 5155388320 is about 71801.0328616518. The cubic root of 5155388320 is about 1727.5095666104.

It can be divided in two parts, 515 and 5388320, that added together give a palindrome (5388835).

The spelling of 5155388320 in words is "five billion, one hundred fifty-five million, three hundred eighty-eight thousand, three hundred twenty".