2825287811 has 4 divisors (see below), whose sum is σ = 2850290472. Its totient is φ = 2800285152.

The previous prime is 2825287807. The next prime is 2825287831. The reversal of 2825287811 is 1187825282.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2825287811 - 2² = 2825287807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2825287831) 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, 12501161 + ... + 12501386.

It is an arithmetic number, because the mean of its divisors is an integer number (712572618).

Almost surely, 2^2825287811 is an apocalyptic number.

2825287811 is a deficient number, since it is larger than the sum of its proper divisors (25002661).

2825287811 is a wasteful number, since it uses less digits than its factorization.

2825287811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25002660.

The product of its digits is 143360, while the sum is 44.

The square root of 2825287811 is about 53153.4364928553. The cubic root of 2825287811 is about 1413.6901497198.

The spelling of 2825287811 in words is "two billion, eight hundred twenty-five million, two hundred eighty-seven thousand, eight hundred eleven".