53420747273 has 2 divisors, whose sum is σ = 53420747274. Its totient is φ = 53420747272.

The previous prime is 53420747239. The next prime is 53420747279. The reversal of 53420747273 is 37274702435.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35401175104 + 18019572169 = 188152^2 + 134237^2 .

It is a cyclic number.

It is not a de Polignac number, because 53420747273 - 2¹² = 53420743177 is a prime.

It is not a weakly prime, because it can be changed into another prime (53420747279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26710373636 + 26710373637.

It is an arithmetic number, because the mean of its divisors is an integer number (26710373637).

Almost surely, 2^53420747273 is an apocalyptic number.

It is an amenable number.

53420747273 is a deficient number, since it is larger than the sum of its proper divisors (1).

53420747273 is an equidigital number, since it uses as much as digits as its factorization.

53420747273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 44.

The spelling of 53420747273 in words is "fifty-three billion, four hundred twenty million, seven hundred forty-seven thousand, two hundred seventy-three".