80125811 has 8 divisors (see below), whose sum is σ = 87765120. Its totient is φ = 72811648.

The previous prime is 80125807. The next prime is 80125817. The reversal of 80125811 is 11852108.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80125811 - 2² = 80125807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80125817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80771 + ... + 81756.

It is an arithmetic number, because the mean of its divisors is an integer number (10970640).

Almost surely, 2^80125811 is an apocalyptic number.

80125811 is a deficient number, since it is larger than the sum of its proper divisors (7639309).

80125811 is a wasteful number, since it uses less digits than its factorization.

80125811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162573.

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 80125811 is about 8951.3021957702. The cubic root of 80125811 is about 431.1126960215.

Adding to 80125811 its reverse (11852108), we get a palindrome (91977919).

The spelling of 80125811 in words is "eighty million, one hundred twenty-five thousand, eight hundred eleven".