55500394 has 4 divisors (see below), whose sum is σ = 83250594. Its totient is φ = 27750196.

The previous prime is 55500391. The next prime is 55500413. The reversal of 55500394 is 49300555.

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., 48818169 + 6682225 = 6987^2 + 2585^2 .

It is not an unprimeable number, because it can be changed into a prime (55500391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13875097 + ... + 13875100.

Almost surely, 2^55500394 is an apocalyptic number.

55500394 is a deficient number, since it is larger than the sum of its proper divisors (27750200).

55500394 is a wasteful number, since it uses less digits than its factorization.

55500394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27750199.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 55500394 is about 7449.8586563773. The cubic root of 55500394 is about 381.4450839272.

The spelling of 55500394 in words is "fifty-five million, five hundred thousand, three hundred ninety-four".