80277513 has 4 divisors (see below), whose sum is σ = 107036688. Its totient is φ = 53518340.

The previous prime is 80277511. The next prime is 80277523. The reversal of 80277513 is 31577208.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 80277513 - 2¹ = 80277511 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80277511) 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, 13379583 + ... + 13379588.

It is an arithmetic number, because the mean of its divisors is an integer number (26759172).

Almost surely, 2^80277513 is an apocalyptic number.

It is an amenable number.

80277513 is a deficient number, since it is larger than the sum of its proper divisors (26759175).

80277513 is a wasteful number, since it uses less digits than its factorization.

80277513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26759174.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 80277513 is about 8959.7719279008. The cubic root of 80277513 is about 431.3845993631.

The spelling of 80277513 in words is "eighty million, two hundred seventy-seven thousand, five hundred thirteen".