80437057 has 2 divisors, whose sum is σ = 80437058. Its totient is φ = 80437056.

The previous prime is 80437037. The next prime is 80437061. The reversal of 80437057 is 75073408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41011216 + 39425841 = 6404^2 + 6279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80437057 is a prime.

It is not a weakly prime, because it can be changed into another prime (80437037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40218528 + 40218529.

It is an arithmetic number, because the mean of its divisors is an integer number (40218529).

Almost surely, 2^80437057 is an apocalyptic number.

It is an amenable number.

80437057 is a deficient number, since it is larger than the sum of its proper divisors (1).

80437057 is an equidigital number, since it uses as much as digits as its factorization.

80437057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 80437057 is about 8968.6708602780. The cubic root of 80437057 is about 431.6701890130.

The spelling of 80437057 in words is "eighty million, four hundred thirty-seven thousand, fifty-seven".