405053357 has 2 divisors, whose sum is σ = 405053358. Its totient is φ = 405053356.

The previous prime is 405053333. The next prime is 405053431. The reversal of 405053357 is 753350504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294088201 + 110965156 = 17149^2 + 10534^2 .

It is a cyclic number.

It is not a de Polignac number, because 405053357 - 2⁶ = 405053293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405053317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202526678 + 202526679.

It is an arithmetic number, because the mean of its divisors is an integer number (202526679).

Almost surely, 2^405053357 is an apocalyptic number.

It is an amenable number.

405053357 is a deficient number, since it is larger than the sum of its proper divisors (1).

405053357 is an equidigital number, since it uses as much as digits as its factorization.

405053357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 405053357 is about 20125.9374191614. The cubic root of 405053357 is about 739.8961121508.

The spelling of 405053357 in words is "four hundred five million, fifty-three thousand, three hundred fifty-seven".