25513045 has 8 divisors (see below), whose sum is σ = 30689280. Its totient is φ = 20361360.

The previous prime is 25513043. The next prime is 25513097. The reversal of 25513045 is 54031552.

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

It is not a de Polignac number, because 25513045 - 2¹ = 25513043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25513043) 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, 3765 + ... + 8074.

It is an arithmetic number, because the mean of its divisors is an integer number (3836160).

Almost surely, 2^25513045 is an apocalyptic number.

It is an amenable number.

25513045 is a deficient number, since it is larger than the sum of its proper divisors (5176235).

25513045 is a wasteful number, since it uses less digits than its factorization.

25513045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12275.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 25513045 is about 5051.0439515015. The cubic root of 25513045 is about 294.3884486954.

Adding to 25513045 its reverse (54031552), we get a palindrome (79544597).

The spelling of 25513045 in words is "twenty-five million, five hundred thirteen thousand, forty-five".