53529691 has 2 divisors, whose sum is σ = 53529692. Its totient is φ = 53529690.

The previous prime is 53529683. The next prime is 53529701. The reversal of 53529691 is 19692535.

It is a happy number.

53529691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53529691 - 2³ = 53529683 is a prime.

It is not a weakly prime, because it can be changed into another prime (53529601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26764845 + 26764846.

It is an arithmetic number, because the mean of its divisors is an integer number (26764846).

Almost surely, 2^53529691 is an apocalyptic number.

53529691 is a deficient number, since it is larger than the sum of its proper divisors (1).

53529691 is an equidigital number, since it uses as much as digits as its factorization.

53529691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72900, while the sum is 40.

The square root of 53529691 is about 7316.3987726203. The cubic root of 53529691 is about 376.8757948861.

The spelling of 53529691 in words is "fifty-three million, five hundred twenty-nine thousand, six hundred ninety-one".