5155432920 has 640 divisors, whose sum is σ = 20473896960. Its totient is φ = 1149603840.

The previous prime is 5155432883. The next prime is 5155432939. The reversal of 5155432920 is 292345515.

It is a happy number.

5155432920 is a `hidden beast` number, since 51 + 554 + 32 + 9 + 20 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 40593897 + ... + 40594023.

It is an arithmetic number, because the mean of its divisors is an integer number (31990464).

Almost surely, 2^5155432920 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 5155432920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10236948480).

5155432920 is an abundant number, since it is smaller than the sum of its proper divisors (15318464040).

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

5155432920 is a wasteful number, since it uses less digits than its factorization.

5155432920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 5155432920 is about 71801.3434414705. The cubic root of 5155432920 is about 1727.5145482400.

The spelling of 5155432920 in words is "five billion, one hundred fifty-five million, four hundred thirty-two thousand, nine hundred twenty".