53553679 has 2 divisors, whose sum is σ = 53553680. Its totient is φ = 53553678.

The previous prime is 53553671. The next prime is 53553733. The reversal of 53553679 is 97635535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53553679 - 2³ = 53553671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53553671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26776839 + 26776840.

It is an arithmetic number, because the mean of its divisors is an integer number (26776840).

Almost surely, 2^53553679 is an apocalyptic number.

53553679 is a deficient number, since it is larger than the sum of its proper divisors (1).

53553679 is an equidigital number, since it uses as much as digits as its factorization.

53553679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 425250, while the sum is 43.

The square root of 53553679 is about 7318.0379200985. The cubic root of 53553679 is about 376.9320823178.

The spelling of 53553679 in words is "fifty-three million, five hundred fifty-three thousand, six hundred seventy-nine".