25146530 has 16 divisors (see below), whose sum is σ = 46368504. Its totient is φ = 9813120.

The previous prime is 25146503. The next prime is 25146559. The reversal of 25146530 is 3564152.

It can be written as a sum of positive squares in 4 ways, for example, as 20857489 + 4289041 = 4567^2 + 2071^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25146530.

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, 30257 + ... + 31076.

Almost surely, 2^25146530 is an apocalyptic number.

25146530 is a deficient number, since it is larger than the sum of its proper divisors (21221974).

25146530 is a wasteful number, since it uses less digits than its factorization.

25146530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61381.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 25146530 is about 5014.6315916526. The cubic root of 25146530 is about 292.9719364145.

The spelling of 25146530 in words is "twenty-five million, one hundred forty-six thousand, five hundred thirty".