55005050 has 12 divisors (see below), whose sum is σ = 102309486. Its totient is φ = 22002000.

The previous prime is 55005037. The next prime is 55005073. The reversal of 55005050 is 5050055.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 40844881 + 14160169 = 6391^2 + 3763^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550001 + ... + 550100.

Almost surely, 2^55005050 is an apocalyptic number.

55005050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55005050 is a deficient number, since it is larger than the sum of its proper divisors (47304436).

55005050 is a wasteful number, since it uses less digits than its factorization.

55005050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100113 (or 1100108 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 20.

The square root of 55005050 is about 7416.5389502112. The cubic root of 55005050 is about 380.3068850593.

The spelling of 55005050 in words is "fifty-five million, five thousand, fifty".