7825525306 has 8 divisors (see below), whose sum is σ = 12428775540. Its totient is φ = 3682600128.

The previous prime is 7825525303. The next prime is 7825525319. The reversal of 7825525306 is 6035255287.

It can be written as a sum of positive squares in 2 ways, for example, as 7707259681 + 118265625 = 87791^2 + 10875^2 .

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

It is a super-2 number, since 2×7825525306² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7825525303) 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, 115081221 + ... + 115081288.

Almost surely, 2^7825525306 is an apocalyptic number.

7825525306 is a deficient number, since it is larger than the sum of its proper divisors (4603250234).

7825525306 is a wasteful number, since it uses less digits than its factorization.

7825525306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230162528.

The product of its (nonzero) digits is 504000, while the sum is 43.

The square root of 7825525306 is about 88461.9992200041. Note that the first 3 decimals coincide. The cubic root of 7825525306 is about 1985.3534431870.

The spelling of 7825525306 in words is "seven billion, eight hundred twenty-five million, five hundred twenty-five thousand, three hundred six".