55085902650 has 36 divisors (see below), whose sum is σ = 147997459662. Its totient is φ = 14689573920.

The previous prime is 55085902637. The next prime is 55085902657. The reversal of 55085902650 is 5620958055.

55085902650 is a `hidden beast` number, since 5 + 5 + 0 + 8 + 590 + 2 + 6 + 50 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 32185436409 + 22900466241 = 179403^2 + 151329^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 55085902596 and 55085902605.

It is not an unprimeable number, because it can be changed into a prime (55085902657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 61206109 + ... + 61207008.

Almost surely, 2^55085902650 is an apocalyptic number.

55085902650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55085902650 is an abundant number, since it is smaller than the sum of its proper divisors (92911557012).

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

55085902650 is a wasteful number, since it uses less digits than its factorization.

55085902650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122413135 (or 122413127 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The spelling of 55085902650 in words is "fifty-five billion, eighty-five million, nine hundred two thousand, six hundred fifty".