80051931 has 6 divisors (see below), whose sum is σ = 115630580. Its totient is φ = 53367948.

The previous prime is 80051911. The next prime is 80051953. The reversal of 80051931 is 13915008.

It is not a de Polignac number, because 80051931 - 2⁵ = 80051899 is a prime.

It is a super-2 number, since 2×80051931² = 12816623313657522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80051895 and 80051904.

It is not an unprimeable number, because it can be changed into a prime (80051911) 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 5 ways as a sum of consecutive naturals, for example, 4447321 + ... + 4447338.

Almost surely, 2^80051931 is an apocalyptic number.

80051931 is a deficient number, since it is larger than the sum of its proper divisors (35578649).

80051931 is a wasteful number, since it uses less digits than its factorization.

80051931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8894665 (or 8894662 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 80051931 is about 8947.1744701889. The cubic root of 80051931 is about 430.9801527961.

Adding to 80051931 its reverse (13915008), we get a palindrome (93966939).

The spelling of 80051931 in words is "eighty million, fifty-one thousand, nine hundred thirty-one".