25066690 has 32 divisors (see below), whose sum is σ = 49533120. Its totient is φ = 9057600.

The previous prime is 25066673. The next prime is 25066697. The reversal of 25066690 is 9666052.

It is a super-2 number, since 2×25066690² = 1256677895112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25066697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19281 + ... + 20539.

It is an arithmetic number, because the mean of its divisors is an integer number (1547910).

Almost surely, 2^25066690 is an apocalyptic number.

25066690 is a deficient number, since it is larger than the sum of its proper divisors (24466430).

25066690 is a wasteful number, since it uses less digits than its factorization.

25066690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 25066690 is about 5006.6645583662. The cubic root of 25066690 is about 292.6615466253.

The spelling of 25066690 in words is "twenty-five million, sixty-six thousand, six hundred ninety".