20725067 has 16 divisors (see below), whose sum is σ = 24261120. Its totient is φ = 17503200.

The previous prime is 20725051. The next prime is 20725123. The reversal of 20725067 is 76052702.

It is a happy number.

It is not a de Polignac number, because 20725067 - 2⁴ = 20725051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20725007) 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, 10142 + ... + 12012.

It is an arithmetic number, because the mean of its divisors is an integer number (1516320).

Almost surely, 2^20725067 is an apocalyptic number.

20725067 is a deficient number, since it is larger than the sum of its proper divisors (3536053).

20725067 is a wasteful number, since it uses less digits than its factorization.

20725067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 20725067 is about 4552.4792146697. The cubic root of 20725067 is about 274.6831259250.

Adding to 20725067 its reverse (76052702), we get a palindrome (96777769).

The spelling of 20725067 in words is "twenty million, seven hundred twenty-five thousand, sixty-seven".