25470745 has 8 divisors (see below), whose sum is σ = 30880584. Its totient is φ = 20166144.

The previous prime is 25470737. The next prime is 25470751. The reversal of 25470745 is 54707452.

It can be written as a sum of positive squares in 4 ways, for example, as 1763584 + 23707161 = 1328^2 + 4869^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25470745 - 2³ = 25470737 is a prime.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25470745.

It is an unprimeable number.

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, 25774 + ... + 26743.

It is an arithmetic number, because the mean of its divisors is an integer number (3860073).

Almost surely, 2^25470745 is an apocalyptic number.

It is an amenable number.

25470745 is a deficient number, since it is larger than the sum of its proper divisors (5409839).

25470745 is an equidigital number, since it uses as much as digits as its factorization.

25470745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52619.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 25470745 is about 5046.8549612605. The cubic root of 25470745 is about 294.2256624321.

The spelling of 25470745 in words is "twenty-five million, four hundred seventy thousand, seven hundred forty-five".