20625070 has 16 divisors (see below), whose sum is σ = 39079440. Its totient is φ = 7815744.

The previous prime is 20625067. The next prime is 20625071. The reversal of 20625070 is 7052602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20625071) 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, 54087 + ... + 54466.

It is an arithmetic number, because the mean of its divisors is an integer number (2442465).

Almost surely, 2^20625070 is an apocalyptic number.

20625070 is a deficient number, since it is larger than the sum of its proper divisors (18454370).

20625070 is a wasteful number, since it uses less digits than its factorization.

20625070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108579.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 20625070 is about 4541.4832378861. The cubic root of 20625070 is about 274.2406378730.

Adding to 20625070 its reverse (7052602), we get a palindrome (27677672).

The spelling of 20625070 in words is "twenty million, six hundred twenty-five thousand, seventy".