52215015 has 8 divisors (see below), whose sum is σ = 83544048. Its totient is φ = 27848000.

The previous prime is 52215011. The next prime is 52215019. The reversal of 52215015 is 51051225.

It is an interprime number because it is at equal distance from previous prime (52215011) and next prime (52215019).

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

It is not a de Polignac number, because 52215015 - 2² = 52215011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52214982 and 52215000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52215011) 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, 1740486 + ... + 1740515.

It is an arithmetic number, because the mean of its divisors is an integer number (10443006).

Almost surely, 2^52215015 is an apocalyptic number.

52215015 is a deficient number, since it is larger than the sum of its proper divisors (31329033).

52215015 is a wasteful number, since it uses less digits than its factorization.

52215015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481009.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 52215015 is about 7225.9957791297. The cubic root of 52215015 is about 373.7648607268.

The spelling of 52215015 in words is "fifty-two million, two hundred fifteen thousand, fifteen".