52194215 has 4 divisors (see below), whose sum is σ = 62633064. Its totient is φ = 41755368.

The previous prime is 52194211. The next prime is 52194221. The reversal of 52194215 is 51249125.

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 52194215 - 2² = 52194211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52194211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5219417 + ... + 5219426.

It is an arithmetic number, because the mean of its divisors is an integer number (15658266).

Almost surely, 2^52194215 is an apocalyptic number.

52194215 is a deficient number, since it is larger than the sum of its proper divisors (10438849).

52194215 is a wasteful number, since it uses less digits than its factorization.

52194215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10438848.

The product of its digits is 3600, while the sum is 29.

The square root of 52194215 is about 7224.5563877653. The cubic root of 52194215 is about 373.7152240362.

The spelling of 52194215 in words is "fifty-two million, one hundred ninety-four thousand, two hundred fifteen".