25146030 has 128 divisors (see below), whose sum is σ = 75995136. Its totient is φ = 5184000.

The previous prime is 25146019. The next prime is 25146031. The reversal of 25146030 is 3064152.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 25145988 and 25146006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25146031) 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 63 ways as a sum of consecutive naturals, for example, 166455 + ... + 166605.

It is an arithmetic number, because the mean of its divisors is an integer number (593712).

Almost surely, 2^25146030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25146030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37997568).

25146030 is an abundant number, since it is smaller than the sum of its proper divisors (50849106).

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

25146030 is a wasteful number, since it uses less digits than its factorization.

25146030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 25146030 is about 5014.5817372937. The cubic root of 25146030 is about 292.9699946365.

The spelling of 25146030 in words is "twenty-five million, one hundred forty-six thousand, thirty".