27500025533 has 2 divisors, whose sum is σ = 27500025534. Its totient is φ = 27500025532.

The previous prime is 27500025491. The next prime is 27500025563. The reversal of 27500025533 is 33552000572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15866677369 + 11633348164 = 125963^2 + 107858^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27500025533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27500025533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27500025563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13750012766 + 13750012767.

It is an arithmetic number, because the mean of its divisors is an integer number (13750012767).

Almost surely, 2^27500025533 is an apocalyptic number.

It is an amenable number.

27500025533 is a deficient number, since it is larger than the sum of its proper divisors (1).

27500025533 is an equidigital number, since it uses as much as digits as its factorization.

27500025533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 32.

The spelling of 27500025533 in words is "twenty-seven billion, five hundred million, twenty-five thousand, five hundred thirty-three".