30023125 has 30 divisors (see below), whose sum is σ = 41341454. Its totient is φ = 21780000.

The previous prime is 30023107. The next prime is 30023137. The reversal of 30023125 is 52132003.

It can be written as a sum of positive squares in 5 ways, for example, as 9284209 + 20738916 = 3047^2 + 4554^2 .

It is not a de Polignac number, because 30023125 - 2¹¹ = 30021077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30023099 and 30023108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 75427 + ... + 75823.

Almost surely, 2^30023125 is an apocalyptic number.

It is an amenable number.

30023125 is a deficient number, since it is larger than the sum of its proper divisors (11318329).

30023125 is an equidigital number, since it uses as much as digits as its factorization.

30023125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 30023125 is about 5479.3361824221. The cubic root of 30023125 is about 310.8030687031.

Adding to 30023125 its reverse (52132003), we get a palindrome (82155128).

The spelling of 30023125 in words is "thirty million, twenty-three thousand, one hundred twenty-five".