825889049 has 2 divisors, whose sum is σ = 825889050. Its totient is φ = 825889048.

The previous prime is 825889007. The next prime is 825889061. The reversal of 825889049 is 940988528.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 730729024 + 95160025 = 27032^2 + 9755^2 .

It is a cyclic number.

It is not a de Polignac number, because 825889049 - 2⁸ = 825888793 is a prime.

It is a super-3 number, since 3×825889049³ (a number of 28 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (825889069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412944524 + 412944525.

It is an arithmetic number, because the mean of its divisors is an integer number (412944525).

Almost surely, 2^825889049 is an apocalyptic number.

It is an amenable number.

825889049 is a deficient number, since it is larger than the sum of its proper divisors (1).

825889049 is an equidigital number, since it uses as much as digits as its factorization.

825889049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The square root of 825889049 is about 28738.2854220637. The cubic root of 825889049 is about 938.2255073576.

The spelling of 825889049 in words is "eight hundred twenty-five million, eight hundred eighty-nine thousand, forty-nine".