52219669 has 2 divisors, whose sum is σ = 52219670. Its totient is φ = 52219668.

The previous prime is 52219649. The next prime is 52219693. The reversal of 52219669 is 96691225.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52200625 + 19044 = 7225^2 + 138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52219669 is a prime.

It is a super-2 number, since 2×52219669² = 5453787660939122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52219649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26109834 + 26109835.

It is an arithmetic number, because the mean of its divisors is an integer number (26109835).

Almost surely, 2^52219669 is an apocalyptic number.

It is an amenable number.

52219669 is a deficient number, since it is larger than the sum of its proper divisors (1).

52219669 is an equidigital number, since it uses as much as digits as its factorization.

52219669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 40.

The square root of 52219669 is about 7226.3178036950. The cubic root of 52219669 is about 373.7759651316.

The spelling of 52219669 in words is "fifty-two million, two hundred nineteen thousand, six hundred sixty-nine".