53644453 has 2 divisors, whose sum is σ = 53644454. Its totient is φ = 53644452.

The previous prime is 53644417. The next prime is 53644463. The reversal of 53644453 is 35444635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32695524 + 20948929 = 5718^2 + 4577^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53644453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53644463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26822226 + 26822227.

It is an arithmetic number, because the mean of its divisors is an integer number (26822227).

Almost surely, 2^53644453 is an apocalyptic number.

It is an amenable number.

53644453 is a deficient number, since it is larger than the sum of its proper divisors (1).

53644453 is an equidigital number, since it uses as much as digits as its factorization.

53644453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 34.

The square root of 53644453 is about 7324.2373664430. The cubic root of 53644453 is about 377.1449299361.

The spelling of 53644453 in words is "fifty-three million, six hundred forty-four thousand, four hundred fifty-three".