7825057829 has 8 divisors (see below), whose sum is σ = 8125723032. Its totient is φ = 7529621760.

The previous prime is 7825057811. The next prime is 7825057909. The reversal of 7825057829 is 9287505287.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10144225 + 7814913604 = 3185^2 + 88402^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7825057829 - 2⁸ = 7825057573 is a prime.

It is a super-2 number, since 2×7825057829² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7825057129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304234 + ... + 1310219.

It is an arithmetic number, because the mean of its divisors is an integer number (1015715379).

Almost surely, 2^7825057829 is an apocalyptic number.

It is an amenable number.

7825057829 is a deficient number, since it is larger than the sum of its proper divisors (300665203).

7825057829 is a wasteful number, since it uses less digits than its factorization.

7825057829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614567.

The product of its (nonzero) digits is 2822400, while the sum is 53.

The square root of 7825057829 is about 88459.3569330006. The cubic root of 7825057829 is about 1985.3139090762.

The spelling of 7825057829 in words is "seven billion, eight hundred twenty-five million, fifty-seven thousand, eight hundred twenty-nine".