52161219 has 32 divisors (see below), whose sum is σ = 89268480. Its totient is φ = 29750400.

The previous prime is 52161203. The next prime is 52161233. The reversal of 52161219 is 91216125.

It is not a de Polignac number, because 52161219 - 2⁴ = 52161203 is a prime.

It is a super-2 number, since 2×52161219² = 5441585535131922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

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 = 52161192 and 52161201.

It is not an unprimeable number, because it can be changed into a prime (52161299) 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, 117 + ... + 10214.

It is an arithmetic number, because the mean of its divisors is an integer number (2789640).

Almost surely, 2^52161219 is an apocalyptic number.

52161219 is a deficient number, since it is larger than the sum of its proper divisors (37107261).

52161219 is a wasteful number, since it uses less digits than its factorization.

52161219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10368 (or 10362 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 52161219 is about 7222.2724263212. The cubic root of 52161219 is about 373.6364560033.

The spelling of 52161219 in words is "fifty-two million, one hundred sixty-one thousand, two hundred nineteen".