25122030 has 48 divisors (see below), whose sum is σ = 61605360. Its totient is φ = 6555648.

The previous prime is 25122029. The next prime is 25122037. The reversal of 25122030 is 3022152.

It is a super-2 number, since 2×25122030² = 1262232782641800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25122037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258942 + ... + 259038.

It is an arithmetic number, because the mean of its divisors is an integer number (1283445).

Almost surely, 2^25122030 is an apocalyptic number.

25122030 is an abundant number, since it is smaller than the sum of its proper divisors (36483330).

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

25122030 is an equidigital number, since it uses as much as digits as its factorization.

25122030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 25122030 is about 5012.1881449124. The cubic root of 25122030 is about 292.8767590044.

Adding to 25122030 its reverse (3022152), we get a palindrome (28144182).

The spelling of 25122030 in words is "twenty-five million, one hundred twenty-two thousand, thirty".