80090257 has 16 divisors (see below), whose sum is σ = 90090000. Its totient is φ = 70689024.

The previous prime is 80090251. The next prime is 80090287. The reversal of 80090257 is 75209008.

It can be written as a sum of positive squares in 8 ways, for example, as 541696 + 79548561 = 736^2 + 8919^2 .

It is a cyclic number.

It is not a de Polignac number, because 80090257 - 2¹¹ = 80088209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80090251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40119 + ... + 42067.

It is an arithmetic number, because the mean of its divisors is an integer number (5630625).

Almost surely, 2^80090257 is an apocalyptic number.

It is an amenable number.

80090257 is a deficient number, since it is larger than the sum of its proper divisors (9999743).

80090257 is a wasteful number, since it uses less digits than its factorization.

80090257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 80090257 is about 8949.3160073829. The cubic root of 80090257 is about 431.0489211144.

The spelling of 80090257 in words is "eighty million, ninety thousand, two hundred fifty-seven".