53145343322009 has 2 divisors, whose sum is σ = 53145343322010. Its totient is φ = 53145343322008.

The previous prime is 53145343321981. The next prime is 53145343322063. The reversal of 53145343322009 is 90022334354135.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48713699430400 + 4431643891609 = 6979520^2 + 2105147^2 .

It is a cyclic number.

It is not a de Polignac number, because 53145343322009 - 2²⁰ = 53145342273433 is a prime.

It is a super-2 number, since 2×53145343322009² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53145343321009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26572671661004 + 26572671661005.

It is an arithmetic number, because the mean of its divisors is an integer number (26572671661005).

Almost surely, 2^{53145343322009} is an apocalyptic number.

It is an amenable number.

53145343322009 is a deficient number, since it is larger than the sum of its proper divisors (1).

53145343322009 is an equidigital number, since it uses as much as digits as its factorization.

53145343322009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 44.

The spelling of 53145343322009 in words is "fifty-three trillion, one hundred forty-five billion, three hundred forty-three million, three hundred twenty-two thousand, nine".