80461625 has 8 divisors (see below), whose sum is σ = 100416264. Its totient is φ = 64369200.

The previous prime is 80461621. The next prime is 80461649. The reversal of 80461625 is 52616408.

It can be written as a sum of positive squares in 4 ways, for example, as 466489 + 79995136 = 683^2 + 8944^2 .

It is not a de Polignac number, because 80461625 - 2² = 80461621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80461591 and 80461600.

It is not an unprimeable number, because it can be changed into a prime (80461621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321722 + ... + 321971.

It is an arithmetic number, because the mean of its divisors is an integer number (12552033).

Almost surely, 2^80461625 is an apocalyptic number.

It is an amenable number.

80461625 is a deficient number, since it is larger than the sum of its proper divisors (19954639).

80461625 is an equidigital number, since it uses as much as digits as its factorization.

80461625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643708 (or 643698 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 80461625 is about 8970.0404123950. The cubic root of 80461625 is about 431.7141330775.

The spelling of 80461625 in words is "eighty million, four hundred sixty-one thousand, six hundred twenty-five".