74804985025 has 27 divisors (see below), whose sum is σ = 97931154531. Its totient is φ = 56674612080.

The previous prime is 74804985011. The next prime is 74804985043. The reversal of 74804985025 is 52058940847.

The square root of 74804985025 is 273505.

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

It can be written as a sum of positive squares in only one way, i.e., 26929794609 + 47875190416 = 164103^2 + 218804^2 .

It is not a de Polignac number, because 74804985025 - 2⁵ = 74804984993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 25981536 + ... + 25984414.

Almost surely, 2^74804985025 is an apocalyptic number.

74804985025 is the 273505-th square number.

74804985025 is the 136753-rd centered octagonal number.

It is an amenable number.

74804985025 is a deficient number, since it is larger than the sum of its proper divisors (23126169506).

74804985025 is an frugal number, since it uses more digits than its factorization.

74804985025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806 (or 2903 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 74804985025 in words is "seventy-four billion, eight hundred four million, nine hundred eighty-five thousand, twenty-five".