535401985 has 16 divisors (see below), whose sum is σ = 660944592. Its totient is φ = 416102400.

The previous prime is 535401953. The next prime is 535401989. The reversal of 535401985 is 589104535.

535401985 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 71301136 + 464100849 = 8444^2 + 21543^2 .

It is not a de Polignac number, because 535401985 - 2⁵ = 535401953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (535401989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43987 + ... + 54823.

It is an arithmetic number, because the mean of its divisors is an integer number (41309037).

Almost surely, 2^535401985 is an apocalyptic number.

It is an amenable number.

535401985 is a deficient number, since it is larger than the sum of its proper divisors (125542607).

535401985 is a wasteful number, since it uses less digits than its factorization.

535401985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11124.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 535401985 is about 23138.7550442974. The cubic root of 535401985 is about 812.0074098226.

The spelling of 535401985 in words is "five hundred thirty-five million, four hundred one thousand, nine hundred eighty-five".