55500146 has 8 divisors (see below), whose sum is σ = 89654124. Its totient is φ = 25615440.

The previous prime is 55500139. The next prime is 55500161. The reversal of 55500146 is 64100555.

It can be written as a sum of positive squares in 2 ways, for example, as 53509225 + 1990921 = 7315^2 + 1411^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 2134621 = 55500146 / (5 + 5 + 5 + 0 + 0 + 1 + 4 + 6).

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, 1067285 + ... + 1067336.

Almost surely, 2^55500146 is an apocalyptic number.

55500146 is a deficient number, since it is larger than the sum of its proper divisors (34153978).

55500146 is a wasteful number, since it uses less digits than its factorization.

55500146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134636.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 55500146 is about 7449.8420117476. The cubic root of 55500146 is about 381.4445157719. Note that the first 3 decimals are identical.

The spelling of 55500146 in words is "fifty-five million, five hundred thousand, one hundred forty-six".