28755061 has 2 divisors, whose sum is σ = 28755062. Its totient is φ = 28755060.

The previous prime is 28755053. The next prime is 28755079. The reversal of 28755061 is 16055782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27300625 + 1454436 = 5225^2 + 1206^2 .

It is a cyclic number.

It is not a de Polignac number, because 28755061 - 2³ = 28755053 is a prime.

It is a super-2 number, since 2×28755061² = 1653707066227442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28755091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14377530 + 14377531.

It is an arithmetic number, because the mean of its divisors is an integer number (14377531).

Almost surely, 2^28755061 is an apocalyptic number.

It is an amenable number.

28755061 is a deficient number, since it is larger than the sum of its proper divisors (1).

28755061 is an equidigital number, since it uses as much as digits as its factorization.

28755061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 28755061 is about 5362.3745672976. The cubic root of 28755061 is about 306.3642585739.

The spelling of 28755061 in words is "twenty-eight million, seven hundred fifty-five thousand, sixty-one".