55000002 has 8 divisors (see below), whose sum is σ = 110000016. Its totient is φ = 18333332.

The previous prime is 54999943. The next prime is 55000013. The reversal of 55000002 is 20000055.

It is a sphenic number, since it is the product of 3 distinct primes.

55000002 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4583328 + ... + 4583339.

It is an arithmetic number, because the mean of its divisors is an integer number (13750002).

Almost surely, 2^55000002 is an apocalyptic number.

55000002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55000002 is a wasteful number, since it uses less digits than its factorization.

55000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9166672.

The product of its (nonzero) digits is 50, while the sum is 12.

The square root of 55000002 is about 7416.1986219356. The cubic root of 55000002 is about 380.2952506858.

Adding to 55000002 its reverse (20000055), we get a palindrome (75000057).

The spelling of 55000002 in words is "fifty-five million, two", and thus it is an aban number and an uban number.