5155532550 has 360 divisors, whose sum is σ = 16918120296. Its totient is φ = 1160490240.

The previous prime is 5155532539. The next prime is 5155532617. The reversal of 5155532550 is 552355515.

5155532550 is a `hidden beast` number, since 5 + 1 + 55 + 53 + 2 + 550 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 16471194 + ... + 16471506.

Almost surely, 2^5155532550 is an apocalyptic number.

5155532550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5155532550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8459060148).

5155532550 is an abundant number, since it is smaller than the sum of its proper divisors (11762587746).

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

5155532550 is a wasteful number, since it uses less digits than its factorization.

5155532550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The square root of 5155532550 is about 71802.0372273656. The cubic root of 5155532550 is about 1727.5256763818.

The spelling of 5155532550 in words is "five billion, one hundred fifty-five million, five hundred thirty-two thousand, five hundred fifty".