2825280528261 has 4 divisors (see below), whose sum is σ = 3767040704352. Its totient is φ = 1883520352172.

The previous prime is 2825280528253. The next prime is 2825280528269. The reversal of 2825280528261 is 1628250825282.

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 an interprime number because it is at equal distance from previous prime (2825280528253) and next prime (2825280528269).

It is a cyclic number.

It is not a de Polignac number, because 2825280528261 - 2³ = 2825280528253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2825280528269) 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, 470880088041 + ... + 470880088046.

It is an arithmetic number, because the mean of its divisors is an integer number (941760176088).

Almost surely, 2^{2825280528261} is an apocalyptic number.

It is an amenable number.

2825280528261 is a deficient number, since it is larger than the sum of its proper divisors (941760176091).

2825280528261 is an equidigital number, since it uses as much as digits as its factorization.

2825280528261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941760176090.

The product of its (nonzero) digits is 2457600, while the sum is 51.

The spelling of 2825280528261 in words is "two trillion, eight hundred twenty-five billion, two hundred eighty million, five hundred twenty-eight thousand, two hundred sixty-one".