53669149 has 2 divisors, whose sum is σ = 53669150. Its totient is φ = 53669148.

The previous prime is 53669141. The next prime is 53669179. The reversal of 53669149 is 94196635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51581124 + 2088025 = 7182^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 53669149 - 2³ = 53669141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53669141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26834574 + 26834575.

It is an arithmetic number, because the mean of its divisors is an integer number (26834575).

Almost surely, 2^53669149 is an apocalyptic number.

It is an amenable number.

53669149 is a deficient number, since it is larger than the sum of its proper divisors (1).

53669149 is an equidigital number, since it uses as much as digits as its factorization.

53669149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 43.

The square root of 53669149 is about 7325.9230817693. The cubic root of 53669149 is about 377.2027957654.

The spelling of 53669149 in words is "fifty-three million, six hundred sixty-nine thousand, one hundred forty-nine".