25054945 has 8 divisors (see below), whose sum is σ = 30093480. Its totient is φ = 20025600.

The previous prime is 25054919. The next prime is 25054951. The reversal of 25054945 is 54945052.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8014561 + 17040384 = 2831^2 + 4128^2 .

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

It is not a de Polignac number, because 25054945 - 2¹³ = 25046753 is a prime.

It is an alternating number because its digits alternate between even and odd.

25054945 is a modest number, since divided by 54945 gives 25 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 25054945.

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, 7545 + ... + 10345.

It is an arithmetic number, because the mean of its divisors is an integer number (3761685).

Almost surely, 2^25054945 is an apocalyptic number.

It is an amenable number.

25054945 is a deficient number, since it is larger than the sum of its proper divisors (5038535).

25054945 is a wasteful number, since it uses less digits than its factorization.

25054945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 25054945 is about 5005.4914843600. The cubic root of 25054945 is about 292.6158306193.

Adding to 25054945 its reverse (54945052), we get a palindrome (79999997).

The spelling of 25054945 in words is "twenty-five million, fifty-four thousand, nine hundred forty-five".