52215398 has 8 divisors (see below), whose sum is σ = 82930392. Its totient is φ = 24571936.

The previous prime is 52215343. The next prime is 52215409. The reversal of 52215398 is 89351225.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 767840 + ... + 767907.

It is an arithmetic number, because the mean of its divisors is an integer number (10366299).

Almost surely, 2^52215398 is an apocalyptic number.

52215398 is a deficient number, since it is larger than the sum of its proper divisors (30714994).

52215398 is a wasteful number, since it uses less digits than its factorization.

52215398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1535766.

The product of its digits is 21600, while the sum is 35.

The square root of 52215398 is about 7226.0222806188. The cubic root of 52215398 is about 373.7657745865.

The spelling of 52215398 in words is "fifty-two million, two hundred fifteen thousand, three hundred ninety-eight".