25670742 has 64 divisors (see below), whose sum is σ = 56263680. Its totient is φ = 7789824.

The previous prime is 25670741. The next prime is 25670761. The reversal of 25670742 is 24707652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25670741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351618 + ... + 351690.

It is an arithmetic number, because the mean of its divisors is an integer number (879120).

Almost surely, 2^25670742 is an apocalyptic number.

25670742 is an abundant number, since it is smaller than the sum of its proper divisors (30592938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25670742 is a wasteful number, since it uses less digits than its factorization.

25670742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 25670742 is about 5066.6302410971. The cubic root of 25670742 is about 294.9937449598.

The spelling of 25670742 in words is "twenty-five million, six hundred seventy thousand, seven hundred forty-two".