28010533 has 2 divisors, whose sum is σ = 28010534. Its totient is φ = 28010532.

The previous prime is 28010531. The next prime is 28010537. The reversal of 28010533 is 33501082.

28010533 is nontrivially palindromic in base 13.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27699169 + 311364 = 5263^2 + 558^2 .

It is a cyclic number.

It is not a de Polignac number, because 28010533 - 2¹ = 28010531 is a prime.

Together with 28010531, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28010531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14005266 + 14005267.

It is an arithmetic number, because the mean of its divisors is an integer number (14005267).

Almost surely, 2^28010533 is an apocalyptic number.

It is an amenable number.

28010533 is a deficient number, since it is larger than the sum of its proper divisors (1).

28010533 is an equidigital number, since it uses as much as digits as its factorization.

28010533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 28010533 is about 5292.4978034951. The cubic root of 28010533 is about 303.6969690707.

The spelling of 28010533 in words is "twenty-eight million, ten thousand, five hundred thirty-three".