402535253 has 8 divisors (see below), whose sum is σ = 412617240. Its totient is φ = 392465920.

The previous prime is 402535219. The next prime is 402535291. The reversal of 402535253 is 352535204.

It can be written as a sum of positive squares in 4 ways, for example, as 15311569 + 387223684 = 3913^2 + 19678^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402535253 - 2¹⁰ = 402534229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402535153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117083 + ... + 120471.

It is an arithmetic number, because the mean of its divisors is an integer number (51577155).

Almost surely, 2^402535253 is an apocalyptic number.

It is an amenable number.

402535253 is a deficient number, since it is larger than the sum of its proper divisors (10081987).

402535253 is a wasteful number, since it uses less digits than its factorization.

402535253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6327.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 402535253 is about 20063.2812122045. The cubic root of 402535253 is about 738.3596811416.

The spelling of 402535253 in words is "four hundred two million, five hundred thirty-five thousand, two hundred fifty-three".