25670988 has 36 divisors (see below), whose sum is σ = 74161360. Its totient is φ = 7334496.

The previous prime is 25670963. The next prime is 25671011. The reversal of 25670988 is 88907652.

25670988 is a `hidden beast` number, since 2 + 567 + 0 + 9 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×25670988² = 1317999249792288, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 50683 + ... + 51186.

Almost surely, 2^25670988 is an apocalyptic number.

25670988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

25670988 is an abundant number, since it is smaller than the sum of its proper divisors (48490372).

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

25670988 is a wasteful number, since it uses less digits than its factorization.

25670988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101886 (or 101881 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 25670988 is about 5066.6545175293. The cubic root of 25670988 is about 294.9946872547.

The spelling of 25670988 in words is "twenty-five million, six hundred seventy thousand, nine hundred eighty-eight".