55000003138 has 4 divisors (see below), whose sum is σ = 82500004710. Its totient is φ = 27500001568.

The previous prime is 55000003129. The next prime is 55000003141. The reversal of 55000003138 is 83130000055.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 54918516409 + 81486729 = 234347^2 + 9027^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13750000783 + ... + 13750000786.

Almost surely, 2^55000003138 is an apocalyptic number.

55000003138 is a deficient number, since it is larger than the sum of its proper divisors (27500001572).

55000003138 is a wasteful number, since it uses less digits than its factorization.

55000003138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27500001571.

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 55000003138 in words is "fifty-five billion, three thousand, one hundred thirty-eight".