20140725 has 24 divisors (see below), whose sum is σ = 36328032. Its totient is φ = 9764800.

The previous prime is 20140667. The next prime is 20140739. The reversal of 20140725 is 52704102.

It is not a de Polignac number, because 20140725 - 2⁹ = 20140213 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 11382 + ... + 13031.

It is an arithmetic number, because the mean of its divisors is an integer number (1513668).

Almost surely, 2^20140725 is an apocalyptic number.

20140725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20140725 is a deficient number, since it is larger than the sum of its proper divisors (16187307).

20140725 is a wasteful number, since it uses less digits than its factorization.

20140725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24437 (or 24432 counting only the distinct ones).

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

The square root of 20140725 is about 4487.8419089803. The cubic root of 20140725 is about 272.0769183055.

Adding to 20140725 its reverse (52704102), we get a palindrome (72844827).

The spelling of 20140725 in words is "twenty million, one hundred forty thousand, seven hundred twenty-five".