80938553 has 2 divisors, whose sum is σ = 80938554. Its totient is φ = 80938552.

The previous prime is 80938523. The next prime is 80938577. The reversal of 80938553 is 35583908.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61340224 + 19598329 = 7832^2 + 4427^2 .

It is a cyclic number.

It is not a de Polignac number, because 80938553 - 2¹² = 80934457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 80938553.

It is not a weakly prime, because it can be changed into another prime (80938523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40469276 + 40469277.

It is an arithmetic number, because the mean of its divisors is an integer number (40469277).

Almost surely, 2^80938553 is an apocalyptic number.

It is an amenable number.

80938553 is a deficient number, since it is larger than the sum of its proper divisors (1).

80938553 is an equidigital number, since it uses as much as digits as its factorization.

80938553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 80938553 is about 8996.5856301155. The cubic root of 80938553 is about 432.5654336497.

The spelling of 80938553 in words is "eighty million, nine hundred thirty-eight thousand, five hundred fifty-three".