308885850625 has 135 divisors (see below), whose sum is σ = 443797496373. Its totient is φ = 214751460000.

The previous prime is 308885850617. The next prime is 308885850629. The reversal of 308885850625 is 526058588803.

The square root of 308885850625 is 555775.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 24216650689 + 284669199936 = 155617^2 + 533544^2 .

It is not a de Polignac number, because 308885850625 - 2³ = 308885850617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 308885850625.

It is not an unprimeable number, because it can be changed into a prime (308885850629) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 6572039352 + ... + 6572039398.

Almost surely, 2^308885850625 is an apocalyptic number.

308885850625 is the 555775-th square number.

308885850625 is the 277888-th centered octagonal number.

It is an amenable number.

308885850625 is a deficient number, since it is larger than the sum of its proper divisors (134911645748).

308885850625 is an frugal number, since it uses more digits than its factorization.

308885850625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 18432000, while the sum is 58.

The spelling of 308885850625 in words is "three hundred eight billion, eight hundred eighty-five million, eight hundred fifty thousand, six hundred twenty-five".