25213045 has 32 divisors (see below), whose sum is σ = 35925120. Its totient is φ = 16746240.

The previous prime is 25213039. The next prime is 25213051. The reversal of 25213045 is 54031252.

It is an interprime number because it is at equal distance from previous prime (25213039) and next prime (25213051).

It is not a de Polignac number, because 25213045 - 2¹⁹ = 24688757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127887 + ... + 128083.

It is an arithmetic number, because the mean of its divisors is an integer number (1122660).

Almost surely, 2^25213045 is an apocalyptic number.

It is an amenable number.

25213045 is a deficient number, since it is larger than the sum of its proper divisors (10712075).

25213045 is a wasteful number, since it uses less digits than its factorization.

25213045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 25213045 is about 5021.2593041985. The cubic root of 25213045 is about 293.2300220147.

Adding to 25213045 its reverse (54031252), we get a palindrome (79244297).

The spelling of 25213045 in words is "twenty-five million, two hundred thirteen thousand, forty-five".