55155202 has 4 divisors (see below), whose sum is σ = 82732806. Its totient is φ = 27577600.

The previous prime is 55155179. The next prime is 55155227. The reversal of 55155202 is 20255155.

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., 29257281 + 25897921 = 5409^2 + 5089^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13788799 + ... + 13788802.

Almost surely, 2^55155202 is an apocalyptic number.

55155202 is a deficient number, since it is larger than the sum of its proper divisors (27577604).

55155202 is a wasteful number, since it uses less digits than its factorization.

55155202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27577603.

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

The square root of 55155202 is about 7426.6548324262. The cubic root of 55155202 is about 380.6526227546.

The spelling of 55155202 in words is "fifty-five million, one hundred fifty-five thousand, two hundred two".