5155218432 has 440 divisors, whose sum is σ = 18974805696. Its totient is φ = 1357627392.

The previous prime is 5155218407. The next prime is 5155218449. The reversal of 5155218432 is 2348125515.

5155218432 is a `hidden beast` number, since 5 + 1 + 5 + 5 + 218 + 432 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7547563 + ... + 7548245.

Almost surely, 2^5155218432 is an apocalyptic number.

5155218432 is a gapful number since it is divisible by the number (52) 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 5155218432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9487402848).

5155218432 is an abundant number, since it is smaller than the sum of its proper divisors (13819587264).

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

5155218432 is a wasteful number, since it uses less digits than its factorization.

5155218432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735 (or 708 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 5155218432 is about 71799.8498048568. The cubic root of 5155218432 is about 1727.4905905831.

The spelling of 5155218432 in words is "five billion, one hundred fifty-five million, two hundred eighteen thousand, four hundred thirty-two".