53212469 has 2 divisors, whose sum is σ = 53212470. Its totient is φ = 53212468.

The previous prime is 53212463. The next prime is 53212487. The reversal of 53212469 is 96421235.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51294244 + 1918225 = 7162^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 53212469 - 2¹² = 53208373 is a prime.

It is a super-2 number, since 2×53212469² = 5663133714151922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53212463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606234 + 26606235.

It is an arithmetic number, because the mean of its divisors is an integer number (26606235).

Almost surely, 2^53212469 is an apocalyptic number.

It is an amenable number.

53212469 is a deficient number, since it is larger than the sum of its proper divisors (1).

53212469 is an equidigital number, since it uses as much as digits as its factorization.

53212469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 53212469 is about 7294.6877246391. The cubic root of 53212469 is about 376.1298522567.

The spelling of 53212469 in words is "fifty-three million, two hundred twelve thousand, four hundred sixty-nine".