80057421 has 12 divisors (see below), whose sum is σ = 117223548. Its totient is φ = 52640064.

The previous prime is 80057413. The next prime is 80057423. The reversal of 80057421 is 12475008.

It can be written as a sum of positive squares in 2 ways, for example, as 63776196 + 16281225 = 7986^2 + 4035^2 .

It is not a de Polignac number, because 80057421 - 2³ = 80057413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80057423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60270 + ... + 61583.

It is an arithmetic number, because the mean of its divisors is an integer number (9768629).

Almost surely, 2^80057421 is an apocalyptic number.

It is an amenable number.

80057421 is a deficient number, since it is larger than the sum of its proper divisors (37166127).

80057421 is a wasteful number, since it uses less digits than its factorization.

80057421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121932 (or 121929 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 80057421 is about 8947.4812656971. The cubic root of 80057421 is about 430.9900048464.

The spelling of 80057421 in words is "eighty million, fifty-seven thousand, four hundred twenty-one".