104778453025 has 27 divisors (see below), whose sum is σ = 133255874073. Its totient is φ = 81726513600.

The previous prime is 104778453019. The next prime is 104778453079. The reversal of 104778453025 is 520354877401.

The square root of 104778453025 is 323695.

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

It can be written as a sum of positive squares in 4 ways, for example, as 44102940049 + 60675512976 = 210007^2 + 246324^2 .

It is not a de Polignac number, because 104778453025 - 2⁷ = 104778452897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 66356686 + ... + 66358264.

Almost surely, 2^104778453025 is an apocalyptic number.

104778453025 is the 323695-th square number.

104778453025 is the 161848-th centered octagonal number.

It is an amenable number.

104778453025 is a deficient number, since it is larger than the sum of its proper divisors (28477421048).

104778453025 is an frugal number, since it uses more digits than its factorization.

104778453025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3250 (or 1625 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 104778453025 in words is "one hundred four billion, seven hundred seventy-eight million, four hundred fifty-three thousand, twenty-five".