25251045 has 8 divisors (see below), whose sum is σ = 40401696. Its totient is φ = 13467216.

The previous prime is 25251013. The next prime is 25251047. The reversal of 25251045 is 54015252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25251045 - 2⁵ = 25251013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25251047) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 841687 + ... + 841716.

It is an arithmetic number, because the mean of its divisors is an integer number (5050212).

Almost surely, 2^25251045 is an apocalyptic number.

It is an amenable number.

25251045 is a deficient number, since it is larger than the sum of its proper divisors (15150651).

25251045 is a wasteful number, since it uses less digits than its factorization.

25251045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683411.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 25251045 is about 5025.0417908710. The cubic root of 25251045 is about 293.3772625612.

Adding to 25251045 its reverse (54015252), we get a palindrome (79266297).

It can be divided in two parts, 2525 and 1045, that added together give a triangular number (3570 = T₈₄).

The spelling of 25251045 in words is "twenty-five million, two hundred fifty-one thousand, forty-five".