55102115 has 4 divisors (see below), whose sum is σ = 66122544. Its totient is φ = 44081688.

The previous prime is 55102067. The next prime is 55102121. The reversal of 55102115 is 51120155.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55102115 - 2⁶ = 55102051 is a prime.

It is a Duffinian number.

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, 5510207 + ... + 5510216.

It is an arithmetic number, because the mean of its divisors is an integer number (16530636).

Almost surely, 2^55102115 is an apocalyptic number.

55102115 is a deficient number, since it is larger than the sum of its proper divisors (11020429).

55102115 is a wasteful number, since it uses less digits than its factorization.

55102115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11020428.

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 55102115 is about 7423.0798864083. The cubic root of 55102115 is about 380.5304572299.

The spelling of 55102115 in words is "fifty-five million, one hundred two thousand, one hundred fifteen".