28077625553 has 2 divisors, whose sum is σ = 28077625554. Its totient is φ = 28077625552.

The previous prime is 28077625531. The next prime is 28077625601. The reversal of 28077625553 is 35552677082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19636977424 + 8440648129 = 140132^2 + 91873^2 .

It is a cyclic number.

It is not a de Polignac number, because 28077625553 - 2¹² = 28077621457 is a prime.

It is not a weakly prime, because it can be changed into another prime (28077622553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14038812776 + 14038812777.

It is an arithmetic number, because the mean of its divisors is an integer number (14038812777).

Almost surely, 2^28077625553 is an apocalyptic number.

It is an amenable number.

28077625553 is a deficient number, since it is larger than the sum of its proper divisors (1).

28077625553 is an equidigital number, since it uses as much as digits as its factorization.

28077625553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528000, while the sum is 50.

The spelling of 28077625553 in words is "twenty-eight billion, seventy-seven million, six hundred twenty-five thousand, five hundred fifty-three".