30025825 has 48 divisors (see below), whose sum is σ = 42425856. Its totient is φ = 20966400.

The previous prime is 30025819. The next prime is 30025843. The reversal of 30025825 is 52852003.

It is not a de Polignac number, because 30025825 - 2¹³ = 30017633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 30025825.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 566499 + ... + 566551.

It is an arithmetic number, because the mean of its divisors is an integer number (883872).

Almost surely, 2^30025825 is an apocalyptic number.

It is an amenable number.

30025825 is a deficient number, since it is larger than the sum of its proper divisors (12400031).

30025825 is a wasteful number, since it uses less digits than its factorization.

30025825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 30025825 is about 5479.5825570932. The cubic root of 30025825 is about 310.8123853341.

Adding to 30025825 its reverse (52852003), we get a palindrome (82877828).

The spelling of 30025825 in words is "thirty million, twenty-five thousand, eight hundred twenty-five".