52215649 has 8 divisors (see below), whose sum is σ = 53461440. Its totient is φ = 50982000.

The previous prime is 52215643. The next prime is 52215661. The reversal of 52215649 is 94651225.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52215649 - 2³ = 52215641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52215641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5979 + ... + 11839.

It is an arithmetic number, because the mean of its divisors is an integer number (6682680).

Almost surely, 2^52215649 is an apocalyptic number.

52215649 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

52215649 is a deficient number, since it is larger than the sum of its proper divisors (1245791).

52215649 is a wasteful number, since it uses less digits than its factorization.

52215649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071.

The product of its digits is 21600, while the sum is 34.

The square root of 52215649 is about 7226.0396483828. The cubic root of 52215649 is about 373.7663734843.

The spelling of 52215649 in words is "fifty-two million, two hundred fifteen thousand, six hundred forty-nine".