53429969 has 2 divisors, whose sum is σ = 53429970. Its totient is φ = 53429968.

The previous prime is 53429953. The next prime is 53430001. The reversal of 53429969 is 96992435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50908225 + 2521744 = 7135^2 + 1588^2 .

It is a cyclic number.

It is not a de Polignac number, because 53429969 - 2⁴ = 53429953 is a prime.

It is a super-2 number, since 2×53429969² = 5709523174681922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (53429939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26714984 + 26714985.

It is an arithmetic number, because the mean of its divisors is an integer number (26714985).

Almost surely, 2^53429969 is an apocalyptic number.

It is an amenable number.

53429969 is a deficient number, since it is larger than the sum of its proper divisors (1).

53429969 is an equidigital number, since it uses as much as digits as its factorization.

53429969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 524880, while the sum is 47.

The square root of 53429969 is about 7309.5806309254. The cubic root of 53429969 is about 376.6416184908.

It can be divided in two parts, 534 and 29969, that added together give a palindrome (30503).

The spelling of 53429969 in words is "fifty-three million, four hundred twenty-nine thousand, nine hundred sixty-nine".