52215219 has 32 divisors (see below), whose sum is σ = 88750080. Its totient is φ = 29721600.

The previous prime is 52215199. The next prime is 52215223. The reversal of 52215219 is 91251225.

It is not a de Polignac number, because 52215219 - 2⁵ = 52215187 is a prime.

It is a super-3 number, since 3×52215219³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 52215192 and 52215201.

It is not an unprimeable number, because it can be changed into a prime (52215239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81139 + ... + 81779.

It is an arithmetic number, because the mean of its divisors is an integer number (2773440).

Almost surely, 2^52215219 is an apocalyptic number.

52215219 is a deficient number, since it is larger than the sum of its proper divisors (36534861).

52215219 is a wasteful number, since it uses less digits than its factorization.

52215219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1082 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 52215219 is about 7226.0098948175. The cubic root of 52215219 is about 373.7653474830.

It can be divided in two parts, 5221 and 5219, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 52215219 in words is "fifty-two million, two hundred fifteen thousand, two hundred nineteen".