25629970 has 16 divisors (see below), whose sum is σ = 46719360. Its totient is φ = 10121904.

The previous prime is 25629907. The next prime is 25629973. The reversal of 25629970 is 7992652.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25629973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15432 + ... + 17011.

It is an arithmetic number, because the mean of its divisors is an integer number (2919960).

Almost surely, 2^25629970 is an apocalyptic number.

25629970 is a deficient number, since it is larger than the sum of its proper divisors (21089390).

25629970 is a wasteful number, since it uses less digits than its factorization.

25629970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32529.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 25629970 is about 5062.6050606382. The cubic root of 25629970 is about 294.8374858976.

The spelling of 25629970 in words is "twenty-five million, six hundred twenty-nine thousand, nine hundred seventy".