15555055050 has 48 divisors (see below), whose sum is σ = 42862822080. Its totient is φ = 4148014320.

The previous prime is 15555055031. The next prime is 15555055051. The reversal of 15555055050 is 5055055551.

It is a happy number.

15555055050 is a `hidden beast` number, since 1 + 5 + 5 + 5 + 50 + 550 + 50 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 15555054996 and 15555055014.

It is not an unprimeable number, because it can be changed into a prime (15555055051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5759782 + ... + 5762481.

It is an arithmetic number, because the mean of its divisors is an integer number (892975460).

Almost surely, 2^15555055050 is an apocalyptic number.

15555055050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15555055050 is an abundant number, since it is smaller than the sum of its proper divisors (27307767030).

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

15555055050 is a wasteful number, since it uses less digits than its factorization.

15555055050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11522284 (or 11522273 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 36.

The spelling of 15555055050 in words is "fifteen billion, five hundred fifty-five million, fifty-five thousand, fifty".