52221769 has 2 divisors, whose sum is σ = 52221770. Its totient is φ = 52221768.

The previous prime is 52221751. The next prime is 52221803. The reversal of 52221769 is 96712225.

It is an a-pointer prime, because the next prime (52221803) can be obtained adding 52221769 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33212169 + 19009600 = 5763^2 + 4360^2 .

It is a cyclic number.

It is not a de Polignac number, because 52221769 - 2⁷ = 52221641 is a prime.

It is a super-2 number, since 2×52221769² = 5454226314978722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52221269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26110884 + 26110885.

It is an arithmetic number, because the mean of its divisors is an integer number (26110885).

Almost surely, 2^52221769 is an apocalyptic number.

It is an amenable number.

52221769 is a deficient number, since it is larger than the sum of its proper divisors (1).

52221769 is an equidigital number, since it uses as much as digits as its factorization.

52221769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 34.

The square root of 52221769 is about 7226.4631044516. The cubic root of 52221769 is about 373.7809754979.

The spelling of 52221769 in words is "fifty-two million, two hundred twenty-one thousand, seven hundred sixty-nine".