80602049025 has 81 divisors (see below), whose sum is σ = 150126354313. Its totient is φ = 42926436000.

The previous prime is 80602048987. The next prime is 80602049039. The reversal of 80602049025 is 52094020608.

It is a happy number.

The square root of 80602049025 is 283905.

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

80602049025 is a `hidden beast` number, since 8 + 0 + 602 + 0 + 49 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5469046209 + 75133002816 = 73953^2 + 274104^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 80602049025 - 2¹⁷ = 80601917953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 114981175 + ... + 114981875.

Almost surely, 2^80602049025 is an apocalyptic number.

80602049025 is the 283905-th square number.

80602049025 is the 141953-rd centered octagonal number.

It is an amenable number.

80602049025 is a deficient number, since it is larger than the sum of its proper divisors (69524305288).

80602049025 is an frugal number, since it uses more digits than its factorization.

80602049025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

Multiplying 80602049025 by its sum of digits (36), we get a square (2901673764900 = 1703430²).

The spelling of 80602049025 in words is "eighty billion, six hundred two million, forty-nine thousand, twenty-five".