25061418 has 48 divisors (see below), whose sum is σ = 57707520. Its totient is φ = 7838208.

The previous prime is 25061401. The next prime is 25061429. The reversal of 25061418 is 81416052.

It is a junction number, because it is equal to n+sod(n) for n = 25061391 and 25061400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43146 + ... + 43722.

It is an arithmetic number, because the mean of its divisors is an integer number (1202240).

Almost surely, 2^25061418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25061418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28853760).

25061418 is an abundant number, since it is smaller than the sum of its proper divisors (32646102).

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

25061418 is a wasteful number, since it uses less digits than its factorization.

25061418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 25061418 is about 5006.1380324558. The cubic root of 25061418 is about 292.6410277634.

The spelling of 25061418 in words is "twenty-five million, sixty-one thousand, four hundred eighteen".