80526981 has 8 divisors (see below), whose sum is σ = 109395360. Its totient is φ = 52671632.

The previous prime is 80526967. The next prime is 80527001. The reversal of 80526981 is 18962508.

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 80526981 - 2⁵ = 80526949 is a prime.

It is a super-2 number, since 2×80526981² = 12969189337948722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80524981) 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, 253071 + ... + 253388.

It is an arithmetic number, because the mean of its divisors is an integer number (13674420).

Almost surely, 2^80526981 is an apocalyptic number.

It is an amenable number.

80526981 is a deficient number, since it is larger than the sum of its proper divisors (28868379).

80526981 is a wasteful number, since it uses less digits than its factorization.

80526981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506515.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 80526981 is about 8973.6826888407. The cubic root of 80526981 is about 431.8309899144.

The spelling of 80526981 in words is "eighty million, five hundred twenty-six thousand, nine hundred eighty-one".