30125822 has 4 divisors (see below), whose sum is σ = 45188736. Its totient is φ = 15062910.

The previous prime is 30125801. The next prime is 30125839. The reversal of 30125822 is 22852103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22852103 = 113 ⋅202231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7531454 + ... + 7531457.

It is an arithmetic number, because the mean of its divisors is an integer number (11297184).

Almost surely, 2^30125822 is an apocalyptic number.

30125822 is a deficient number, since it is larger than the sum of its proper divisors (15062914).

30125822 is a wasteful number, since it uses less digits than its factorization.

30125822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15062913.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 30125822 is about 5488.6994816623. The cubic root of 30125822 is about 311.1570427177.

Adding to 30125822 its reverse (22852103), we get a palindrome (52977925).

The spelling of 30125822 in words is "thirty million, one hundred twenty-five thousand, eight hundred twenty-two".