53942389409 has 2 divisors, whose sum is σ = 53942389410. Its totient is φ = 53942389408.

The previous prime is 53942389381. The next prime is 53942389441. The reversal of 53942389409 is 90498324935.

It is a happy number.

53942389409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34097469025 + 19844920384 = 184655^2 + 140872^2 .

It is a cyclic number.

It is not a de Polignac number, because 53942389409 - 2¹⁶ = 53942323873 is a prime.

It is not a weakly prime, because it can be changed into another prime (53942389469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26971194704 + 26971194705.

It is an arithmetic number, because the mean of its divisors is an integer number (26971194705).

Almost surely, 2^53942389409 is an apocalyptic number.

It is an amenable number.

53942389409 is a deficient number, since it is larger than the sum of its proper divisors (1).

53942389409 is an equidigital number, since it uses as much as digits as its factorization.

53942389409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 53942389409 in words is "fifty-three billion, nine hundred forty-two million, three hundred eighty-nine thousand, four hundred nine".