25061730 has 16 divisors (see below), whose sum is σ = 60148224. Its totient is φ = 6683120.

The previous prime is 25061717. The next prime is 25061801. The reversal of 25061730 is 3716052.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25061730.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417666 + ... + 417725.

It is an arithmetic number, because the mean of its divisors is an integer number (3759264).

Almost surely, 2^25061730 is an apocalyptic number.

25061730 is an abundant number, since it is smaller than the sum of its proper divisors (35086494).

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

25061730 is a wasteful number, since it uses less digits than its factorization.

25061730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835401.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 25061730 is about 5006.1691941044. The cubic root of 25061730 is about 292.6422421616.

Adding to 25061730 its reverse (3716052), we get a palindrome (28777782).

The spelling of 25061730 in words is "twenty-five million, sixty-one thousand, seven hundred thirty".