52245815 has 4 divisors (see below), whose sum is σ = 62694984. Its totient is φ = 41796648.

The previous prime is 52245803. The next prime is 52245821. The reversal of 52245815 is 51854225.

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 52245815 - 2⁶ = 52245751 is a prime.

It is a Duffinian number.

It is a congruent 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, 5224577 + ... + 5224586.

It is an arithmetic number, because the mean of its divisors is an integer number (15673746).

Almost surely, 2^52245815 is an apocalyptic number.

52245815 is a deficient number, since it is larger than the sum of its proper divisors (10449169).

52245815 is a wasteful number, since it uses less digits than its factorization.

52245815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449168.

The product of its digits is 16000, while the sum is 32.

The square root of 52245815 is about 7228.1266591005. The cubic root of 52245815 is about 373.8383370053.

The spelling of 52245815 in words is "fifty-two million, two hundred forty-five thousand, eight hundred fifteen".