80645425 has 36 divisors (see below), whose sum is σ = 119109936. Its totient is φ = 53978400.

The previous prime is 80645423. The next prime is 80645431. The reversal of 80645425 is 52454608.

It is not a de Polignac number, because 80645425 - 2¹ = 80645423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80645423) 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 35 ways as a sum of consecutive naturals, for example, 51910 + ... + 53440.

Almost surely, 2^80645425 is an apocalyptic number.

It is an amenable number.

80645425 is a deficient number, since it is larger than the sum of its proper divisors (38464511).

80645425 is a wasteful number, since it uses less digits than its factorization.

80645425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598 (or 1586 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 80645425 is about 8980.2797840602. The cubic root of 80645425 is about 432.0426073231.

The spelling of 80645425 in words is "eighty million, six hundred forty-five thousand, four hundred twenty-five".