80905251 has 8 divisors (see below), whose sum is σ = 123284224. Its totient is φ = 46231560.

The previous prime is 80905219. The next prime is 80905267. The reversal of 80905251 is 15250908.

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

It is not a de Polignac number, because 80905251 - 2⁵ = 80905219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80905151) 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, 1926295 + ... + 1926336.

It is an arithmetic number, because the mean of its divisors is an integer number (15410528).

Almost surely, 2^80905251 is an apocalyptic number.

80905251 is a deficient number, since it is larger than the sum of its proper divisors (42378973).

80905251 is a wasteful number, since it uses less digits than its factorization.

80905251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3852641.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 80905251 is about 8994.7346264356. The cubic root of 80905251 is about 432.5060994607.

The spelling of 80905251 in words is "eighty million, nine hundred five thousand, two hundred fifty-one".