55500154 has 4 divisors (see below), whose sum is σ = 83250234. Its totient is φ = 27750076.

The previous prime is 55500139. The next prime is 55500161. The reversal of 55500154 is 45100555.

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., 29214025 + 26286129 = 5405^2 + 5127^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13875037 + ... + 13875040.

Almost surely, 2^55500154 is an apocalyptic number.

55500154 is a deficient number, since it is larger than the sum of its proper divisors (27750080).

55500154 is a wasteful number, since it uses less digits than its factorization.

55500154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27750079.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 55500154 is about 7449.8425486718. The cubic root of 55500154 is about 381.4445340996. Note that the first 3 decimals are identical.

The spelling of 55500154 in words is "fifty-five million, five hundred thousand, one hundred fifty-four".