80524391 has 8 divisors (see below), whose sum is σ = 83495424. Its totient is φ = 77576760.

The previous prime is 80524373. The next prime is 80524397. The reversal of 80524391 is 19342508.

80524391 = 1109² + 1110² + ... + 1170².

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 80524391 - 2¹⁰ = 80523367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80524397) 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, 1316 + ... + 12758.

It is an arithmetic number, because the mean of its divisors is an integer number (10436928).

Almost surely, 2^80524391 is an apocalyptic number.

80524391 is a deficient number, since it is larger than the sum of its proper divisors (2971033).

80524391 is a wasteful number, since it uses less digits than its factorization.

80524391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11701.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 80524391 is about 8973.5383768054. The cubic root of 80524391 is about 431.8263601856.

Adding to 80524391 its reverse (19342508), we get a palindrome (99866899).

The spelling of 80524391 in words is "eighty million, five hundred twenty-four thousand, three hundred ninety-one".