25223130 has 32 divisors (see below), whose sum is σ = 67262400. Its totient is φ = 6726096.

The previous prime is 25223129. The next prime is 25223141. The reversal of 25223130 is 3132252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46440 + ... + 46979.

It is an arithmetic number, because the mean of its divisors is an integer number (2101950).

Almost surely, 2^25223130 is an apocalyptic number.

25223130 is an abundant number, since it is smaller than the sum of its proper divisors (42039270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25223130 is a wasteful number, since it uses less digits than its factorization.

25223130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93435 (or 93429 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 25223130 is about 5022.2634339509. The cubic root of 25223130 is about 293.2691132943.

Adding to 25223130 its reverse (3132252), we get a palindrome (28355382).

The spelling of 25223130 in words is "twenty-five million, two hundred twenty-three thousand, one hundred thirty".