13650533 has 4 divisors (see below), whose sum is σ = 14700588. Its totient is φ = 12600480.

The previous prime is 13650529. The next prime is 13650547. The reversal of 13650533 is 33505631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6770404 + 6880129 = 2602^2 + 2623^2 .

It is a cyclic number.

It is not a de Polignac number, because 13650533 - 2² = 13650529 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 (13650563) 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, 525008 + ... + 525033.

It is an arithmetic number, because the mean of its divisors is an integer number (3675147).

Almost surely, 2^13650533 is an apocalyptic number.

13650533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13650533 is a deficient number, since it is larger than the sum of its proper divisors (1050055).

13650533 is a wasteful number, since it uses less digits than its factorization.

13650533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050054.

The product of its (nonzero) digits is 4050, while the sum is 26.

The square root of 13650533 is about 3694.6627721620. The cubic root of 13650533 is about 238.9919116326.

The spelling of 13650533 in words is "thirteen million, six hundred fifty thousand, five hundred thirty-three".