535617421 has 2 divisors, whose sum is σ = 535617422. Its totient is φ = 535617420.

The previous prime is 535617361. The next prime is 535617427. The reversal of 535617421 is 124716535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352312900 + 183304521 = 18770^2 + 13539^2 .

It is a cyclic number.

It is not a de Polignac number, because 535617421 - 2¹¹ = 535615373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (535617427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267808710 + 267808711.

It is an arithmetic number, because the mean of its divisors is an integer number (267808711).

Almost surely, 2^535617421 is an apocalyptic number.

It is an amenable number.

535617421 is a deficient number, since it is larger than the sum of its proper divisors (1).

535617421 is an equidigital number, since it uses as much as digits as its factorization.

535617421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 535617421 is about 23143.4098827290. The cubic root of 535617421 is about 812.1163075449.

The spelling of 535617421 in words is "five hundred thirty-five million, six hundred seventeen thousand, four hundred twenty-one".