28552477 has 2 divisors, whose sum is σ = 28552478. Its totient is φ = 28552476.

The previous prime is 28552471. The next prime is 28552481. The reversal of 28552477 is 77425582.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25290841 + 3261636 = 5029^2 + 1806^2 .

It is a cyclic number.

It is not a de Polignac number, because 28552477 - 2¹⁵ = 28519709 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28552471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14276238 + 14276239.

It is an arithmetic number, because the mean of its divisors is an integer number (14276239).

Almost surely, 2^28552477 is an apocalyptic number.

It is an amenable number.

28552477 is a deficient number, since it is larger than the sum of its proper divisors (1).

28552477 is an equidigital number, since it uses as much as digits as its factorization.

28552477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 40.

The square root of 28552477 is about 5343.4517870006. The cubic root of 28552477 is about 305.6431006352.

The spelling of 28552477 in words is "twenty-eight million, five hundred fifty-two thousand, four hundred seventy-seven".