53061409 has 2 divisors, whose sum is σ = 53061410. Its totient is φ = 53061408.

The previous prime is 53061401. The next prime is 53061413. The reversal of 53061409 is 90416035.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30470400 + 22591009 = 5520^2 + 4753^2 .

It is a cyclic number.

It is not a de Polignac number, because 53061409 - 2³ = 53061401 is a prime.

It is not a weakly prime, because it can be changed into another prime (53061401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26530704 + 26530705.

It is an arithmetic number, because the mean of its divisors is an integer number (26530705).

Almost surely, 2^53061409 is an apocalyptic number.

It is an amenable number.

53061409 is a deficient number, since it is larger than the sum of its proper divisors (1).

53061409 is an equidigital number, since it uses as much as digits as its factorization.

53061409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 53061409 is about 7284.3262557357. The cubic root of 53061409 is about 375.7735947428.

The spelling of 53061409 in words is "fifty-three million, sixty-one thousand, four hundred nine".