80533926225 has 27 divisors (see below), whose sum is σ = 144252834843. Its totient is φ = 42949157040.

The previous prime is 80533926217. The next prime is 80533926227. The reversal of 80533926225 is 52262933508.

The square root of 80533926225 is 283785.

It is a perfect power (a square), and thus also a powerful number.

80533926225 is a `hidden beast` number, since 8 + 0 + 533 + 92 + 6 + 2 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28992213441 + 51541712784 = 170271^2 + 227028^2 .

It is not a de Polignac number, because 80533926225 - 2³ = 80533926217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (80533926227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4247316 + ... + 4266234.

Almost surely, 2^80533926225 is an apocalyptic number.

80533926225 is the 283785-th square number.

80533926225 is the 141893-rd centered octagonal number.

It is an amenable number.

80533926225 is a deficient number, since it is larger than the sum of its proper divisors (63718908618).

80533926225 is an frugal number, since it uses more digits than its factorization.

80533926225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37854 (or 18927 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 80533926225 in words is "eighty billion, five hundred thirty-three million, nine hundred twenty-six thousand, two hundred twenty-five".