25575002 has 4 divisors (see below), whose sum is σ = 38362506. Its totient is φ = 12787500.

The previous prime is 25575001. The next prime is 25575037. The reversal of 25575002 is 20057552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21169201 + 4405801 = 4601^2 + 2099^2 .

It is not an unprimeable number, because it can be changed into a prime (25575001) by changing a digit.

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 as a sum of consecutive naturals, namely, 6393749 + ... + 6393752.

Almost surely, 2^25575002 is an apocalyptic number.

25575002 is a deficient number, since it is larger than the sum of its proper divisors (12787504).

25575002 is a wasteful number, since it uses less digits than its factorization.

25575002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12787503.

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 25575002 is about 5057.1733211350. The cubic root of 25575002 is about 294.6265580041.

It can be divided in two parts, 255 and 75002, that added together give a palindrome (75257).

The spelling of 25575002 in words is "twenty-five million, five hundred seventy-five thousand, two".