80071553 has 2 divisors, whose sum is σ = 80071554. Its totient is φ = 80071552.

The previous prime is 80071531. The next prime is 80071561. The reversal of 80071553 is 35517008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76860289 + 3211264 = 8767^2 + 1792^2 .

It is a cyclic number.

It is not a de Polignac number, because 80071553 - 2⁶ = 80071489 is a prime.

It is a super-2 number, since 2×80071553² = 12822907199663618, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80071153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40035776 + 40035777.

It is an arithmetic number, because the mean of its divisors is an integer number (40035777).

Almost surely, 2^80071553 is an apocalyptic number.

It is an amenable number.

80071553 is a deficient number, since it is larger than the sum of its proper divisors (1).

80071553 is an equidigital number, since it uses as much as digits as its factorization.

80071553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 80071553 is about 8948.2709503010. The cubic root of 80071553 is about 431.0153632801.

The spelling of 80071553 in words is "eighty million, seventy-one thousand, five hundred fifty-three".