35520013 has 4 divisors (see below), whose sum is σ = 35532220. Its totient is φ = 35507808.

The previous prime is 35520007. The next prime is 35520029. The reversal of 35520013 is 31002553.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31002553 = 59 ⋅525467.

It can be written as a sum of positive squares in 2 ways, for example, as 14607684 + 20912329 = 3822^2 + 4573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35520013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (35520053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081 + ... + 8497.

It is an arithmetic number, because the mean of its divisors is an integer number (8883055).

Almost surely, 2^35520013 is an apocalyptic number.

It is an amenable number.

35520013 is a deficient number, since it is larger than the sum of its proper divisors (12207).

35520013 is an equidigital number, since it uses as much as digits as its factorization.

35520013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12206.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 35520013 is about 5959.8668609290. The cubic root of 35520013 is about 328.7186706978.

Adding to 35520013 its reverse (31002553), we get a palindrome (66522566).

The spelling of 35520013 in words is "thirty-five million, five hundred twenty thousand, thirteen".