25670045 has 32 divisors (see below), whose sum is σ = 34108800. Its totient is φ = 18475776.

The previous prime is 25670041. The next prime is 25670107. The reversal of 25670045 is 54007652.

It is a cyclic number.

It is not a de Polignac number, because 25670045 - 2² = 25670041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25670041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235451 + ... + 235559.

It is an arithmetic number, because the mean of its divisors is an integer number (1065900).

Almost surely, 2^25670045 is an apocalyptic number.

It is an amenable number.

25670045 is a deficient number, since it is larger than the sum of its proper divisors (8438755).

25670045 is a wasteful number, since it uses less digits than its factorization.

25670045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 25670045 is about 5066.5614572410. The cubic root of 25670045 is about 294.9910750915.

Adding to 25670045 its reverse (54007652), we get a palindrome (79677697).

The spelling of 25670045 in words is "twenty-five million, six hundred seventy thousand, forty-five".