20710425 has 24 divisors (see below), whose sum is σ = 34372800. Its totient is φ = 11003200.

The previous prime is 20710421. The next prime is 20710433. The reversal of 20710425 is 52401702.

It is not a de Polignac number, because 20710425 - 2² = 20710421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20710421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34276 + ... + 34874.

It is an arithmetic number, because the mean of its divisors is an integer number (1432200).

Almost surely, 2^20710425 is an apocalyptic number.

20710425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20710425 is a deficient number, since it is larger than the sum of its proper divisors (13662375).

20710425 is a wasteful number, since it uses less digits than its factorization.

20710425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 20710425 is about 4550.8707957928. The cubic root of 20710425 is about 274.6184239574.

The spelling of 20710425 in words is "twenty million, seven hundred ten thousand, four hundred twenty-five".