53469869 has 2 divisors, whose sum is σ = 53469870. Its totient is φ = 53469868.

The previous prime is 53469853. The next prime is 53469901. The reversal of 53469869 is 96896435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51294244 + 2175625 = 7162^2 + 1475^2 .

It is a cyclic number.

It is not a de Polignac number, because 53469869 - 2⁴ = 53469853 is a prime.

It is a super-2 number, since 2×53469869² = 5718053781754322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53469809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26734934 + 26734935.

It is an arithmetic number, because the mean of its divisors is an integer number (26734935).

Almost surely, 2^53469869 is an apocalyptic number.

It is an amenable number.

53469869 is a deficient number, since it is larger than the sum of its proper divisors (1).

53469869 is an equidigital number, since it uses as much as digits as its factorization.

53469869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 50.

The square root of 53469869 is about 7312.3094163199. The cubic root of 53469869 is about 376.7353502895.

The spelling of 53469869 in words is "fifty-three million, four hundred sixty-nine thousand, eight hundred sixty-nine".