25034545 has 4 divisors (see below), whose sum is σ = 30041460. Its totient is φ = 20027632.

The previous prime is 25034521. The next prime is 25034551. The reversal of 25034545 is 54543052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10342656 + 14691889 = 3216^2 + 3833^2 .

It is a cyclic number.

It is not a de Polignac number, because 25034545 - 2⁷ = 25034417 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2503450 + ... + 2503459.

It is an arithmetic number, because the mean of its divisors is an integer number (7510365).

Almost surely, 2^25034545 is an apocalyptic number.

It is an amenable number.

25034545 is a deficient number, since it is larger than the sum of its proper divisors (5006915).

25034545 is an equidigital number, since it uses as much as digits as its factorization.

25034545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006914.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 25034545 is about 5003.4533074668. The cubic root of 25034545 is about 292.5363920922.

Adding to 25034545 its reverse (54543052), we get a palindrome (79577597).

The spelling of 25034545 in words is "twenty-five million, thirty-four thousand, five hundred forty-five".