25321045 has 16 divisors (see below), whose sum is σ = 31842432. Its totient is φ = 19293120.

The previous prime is 25321013. The next prime is 25321099. The reversal of 25321045 is 54012352.

It is not a de Polignac number, because 25321045 - 2⁵ = 25321013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48154 + ... + 48676.

It is an arithmetic number, because the mean of its divisors is an integer number (1990152).

Almost surely, 2^25321045 is an apocalyptic number.

It is an amenable number.

25321045 is a deficient number, since it is larger than the sum of its proper divisors (6521387).

25321045 is a wasteful number, since it uses less digits than its factorization.

25321045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972.

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

The square root of 25321045 is about 5032.0020866450. The cubic root of 25321045 is about 293.6481089202.

Adding to 25321045 its reverse (54012352), we get a palindrome (79333397).

The spelling of 25321045 in words is "twenty-five million, three hundred twenty-one thousand, forty-five".