25529970 has 32 divisors (see below), whose sum is σ = 62016192. Its totient is φ = 6725312.

The previous prime is 25529953. The next prime is 25529989. The reversal of 25529970 is 7992552.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2637 + ... + 7616.

It is an arithmetic number, because the mean of its divisors is an integer number (1938006).

Almost surely, 2^25529970 is an apocalyptic number.

25529970 is an abundant number, since it is smaller than the sum of its proper divisors (36486222).

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

25529970 is a wasteful number, since it uses less digits than its factorization.

25529970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10346.

The product of its (nonzero) digits is 56700, while the sum is 39.

The square root of 25529970 is about 5052.7190699662. The cubic root of 25529970 is about 294.4535320429.

The spelling of 25529970 in words is "twenty-five million, five hundred twenty-nine thousand, nine hundred seventy".