28051253 has 2 divisors, whose sum is σ = 28051254. Its totient is φ = 28051252.

The previous prime is 28051229. The next prime is 28051273. The reversal of 28051253 is 35215082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26801329 + 1249924 = 5177^2 + 1118^2 .

It is a cyclic number.

It is not a de Polignac number, because 28051253 - 2⁶ = 28051189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28051213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14025626 + 14025627.

It is an arithmetic number, because the mean of its divisors is an integer number (14025627).

Almost surely, 2^28051253 is an apocalyptic number.

It is an amenable number.

28051253 is a deficient number, since it is larger than the sum of its proper divisors (1).

28051253 is an equidigital number, since it uses as much as digits as its factorization.

28051253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 28051253 is about 5296.3433612257. The cubic root of 28051253 is about 303.8440631757.

The spelling of 28051253 in words is "twenty-eight million, fifty-one thousand, two hundred fifty-three".