80268557 has 2 divisors, whose sum is σ = 80268558. Its totient is φ = 80268556.

The previous prime is 80268523. The next prime is 80268569. The reversal of 80268557 is 75586208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49477156 + 30791401 = 7034^2 + 5549^2 .

It is a cyclic number.

It is not a de Polignac number, because 80268557 - 2⁸ = 80268301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80262557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40134278 + 40134279.

It is an arithmetic number, because the mean of its divisors is an integer number (40134279).

Almost surely, 2^80268557 is an apocalyptic number.

It is an amenable number.

80268557 is a deficient number, since it is larger than the sum of its proper divisors (1).

80268557 is an equidigital number, since it uses as much as digits as its factorization.

80268557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 80268557 is about 8959.2721244530. The cubic root of 80268557 is about 431.3685565801.

The spelling of 80268557 in words is "eighty million, two hundred sixty-eight thousand, five hundred fifty-seven".