80137725 has 24 divisors (see below), whose sum is σ = 139470240. Its totient is φ = 40489920.

The previous prime is 80137709. The next prime is 80137741. The reversal of 80137725 is 52773108.

It is an interprime number because it is at equal distance from previous prime (80137709) and next prime (80137741).

It is not a de Polignac number, because 80137725 - 2⁴ = 80137709 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 26694 + ... + 29543.

It is an arithmetic number, because the mean of its divisors is an integer number (5811260).

Almost surely, 2^80137725 is an apocalyptic number.

It is an amenable number.

80137725 is a deficient number, since it is larger than the sum of its proper divisors (59332515).

80137725 is a wasteful number, since it uses less digits than its factorization.

80137725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56269 (or 56264 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 80137725 is about 8951.9676607995. The cubic root of 80137725 is about 431.1340625119.

The spelling of 80137725 in words is "eighty million, one hundred thirty-seven thousand, seven hundred twenty-five".