53561099 has 2 divisors, whose sum is σ = 53561100. Its totient is φ = 53561098.

The previous prime is 53561083. The next prime is 53561119. The reversal of 53561099 is 99016535.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53561099 - 2⁴ = 53561083 is a prime.

It is not a weakly prime, because it can be changed into another prime (53561029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26780549 + 26780550.

It is an arithmetic number, because the mean of its divisors is an integer number (26780550).

Almost surely, 2^53561099 is an apocalyptic number.

53561099 is a deficient number, since it is larger than the sum of its proper divisors (1).

53561099 is an equidigital number, since it uses as much as digits as its factorization.

53561099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36450, while the sum is 38.

The square root of 53561099 is about 7318.5448690296. The cubic root of 53561099 is about 376.9494898171.

The spelling of 53561099 in words is "fifty-three million, five hundred sixty-one thousand, ninety-nine".