80479251 has 20 divisors (see below), whose sum is σ = 121473352. Its totient is φ = 53094528.

The previous prime is 80479249. The next prime is 80479279. The reversal of 80479251 is 15297408.

It is not a de Polignac number, because 80479251 - 2¹ = 80479249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80479291) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2736 + ... + 12978.

Almost surely, 2^80479251 is an apocalyptic number.

80479251 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

80479251 is a deficient number, since it is larger than the sum of its proper divisors (40994101).

80479251 is a wasteful number, since it uses less digits than its factorization.

80479251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10352 (or 10343 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 80479251 is about 8971.0228513810. The cubic root of 80479251 is about 431.7456546786.

The spelling of 80479251 in words is "eighty million, four hundred seventy-nine thousand, two hundred fifty-one".