80553877 has 4 divisors (see below), whose sum is σ = 80587276. Its totient is φ = 80520480.

The previous prime is 80553853. The next prime is 80553883. The reversal of 80553877 is 77835508.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53085796 + 27468081 = 7286^2 + 5241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80553877 is a prime.

It is a super-2 number, since 2×80553877² = 12977854199462258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80553827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12774 + ... + 18007.

It is an arithmetic number, because the mean of its divisors is an integer number (20146819).

Almost surely, 2^80553877 is an apocalyptic number.

It is an amenable number.

80553877 is a deficient number, since it is larger than the sum of its proper divisors (33399).

80553877 is a wasteful number, since it uses less digits than its factorization.

80553877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33398.

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 80553877 is about 8975.1811680879. The cubic root of 80553877 is about 431.8790617255.

The spelling of 80553877 in words is "eighty million, five hundred fifty-three thousand, eight hundred seventy-seven".