25045730 has 16 divisors (see below), whose sum is σ = 45283320. Its totient is φ = 9973632.

The previous prime is 25045721. The next prime is 25045771. The reversal of 25045730 is 3754052.

It can be written as a sum of positive squares in 4 ways, for example, as 24870169 + 175561 = 4987^2 + 419^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25045730.

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, 3179 + ... + 7758.

Almost surely, 2^25045730 is an apocalyptic number.

25045730 is a deficient number, since it is larger than the sum of its proper divisors (20237590).

25045730 is a wasteful number, since it uses less digits than its factorization.

25045730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11173.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 25045730 is about 5004.5709106776. The cubic root of 25045730 is about 292.5799523323.

Adding to 25045730 its reverse (3754052), we get a palindrome (28799782).

The spelling of 25045730 in words is "twenty-five million, forty-five thousand, seven hundred thirty".