53431766573 has 2 divisors, whose sum is σ = 53431766574. Its totient is φ = 53431766572.

The previous prime is 53431766569. The next prime is 53431766599. The reversal of 53431766573 is 37566713435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31003109929 + 22428656644 = 176077^2 + 149762^2 .

It is a cyclic number.

It is not a de Polignac number, because 53431766573 - 2² = 53431766569 is a prime.

It is a super-2 number, since 2×53431766573² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53431766543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26715883286 + 26715883287.

It is an arithmetic number, because the mean of its divisors is an integer number (26715883287).

Almost surely, 2^53431766573 is an apocalyptic number.

It is an amenable number.

53431766573 is a deficient number, since it is larger than the sum of its proper divisors (1).

53431766573 is an equidigital number, since it uses as much as digits as its factorization.

53431766573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4762800, while the sum is 50.

The spelling of 53431766573 in words is "fifty-three billion, four hundred thirty-one million, seven hundred sixty-six thousand, five hundred seventy-three".